Iowa Towns and Communities

Learn the county, when all you know is the town. Sort the list by county to see its places.

Adapted from, which also shows 1) Population in 2010, 2) Land area, 3) Years Founded, and 4) Years Incorporated.

See also Iowa Townships {| class="wikitable sortable" ! Name ! Type ! County ! Comments
 * Addieville|| Village|| Washington||
 * Addison|| Village|| DuPage||
 * Adeline|| Village|| Ogle||
 * Aden|| Unincorporated|| Hamilton||
 * Aden|| Unincorporated|| Wayne||
 * Adrian|| Unincorporated|| Hancock||
 * Advance|| Unincorporated|| Jasper||
 * Afolkey|| Unincorporated|| Stephenson||
 * Albany|| Village|| Whiteside||
 * Albers|| Village|| Clinton||
 * Alden|| Unincorporated|| McHenry||
 * Alexander|| Unincorporated|| Morgan||
 * Alexis|| Village|| Mercer||
 * Alexis|| Village|| Warren|| (partly in Mercer County)
 * Algonquin || Village|| Kane|| (part)
 * Algonquin|| Village|| McHenry||
 * Alhambra|| Village|| Madison||
 * Allendale|| Village|| Wabash||
 * Allens Corners|| Unincorporated|| Kane||
 * Allentown|| Unincorporated|| Tazewell||
 * Allenville|| Village|| Moultrie||
 * Alma|| Village|| Marion||
 * Alorton|| Village|| St. Clair||
 * Alpha|| Village|| Henry||
 * Alsey|| Village|| Scott||
 * Alsip|| Village|| Cook||
 * Alta|| Unincorporated|| Peoria||
 * Alto Pass|| Village|| Union||
 * Altona|| Village|| Knox||
 * Alworth|| Unincorporated|| Winnebago||
 * Ames|| Unincorporated|| Monroe||
 * Anchor|| Village|| McLean||
 * Andalusia|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Andover|| Village|| Henry||
 * Andrew|| Unincorporated|| Sangamon||
 * Annawan|| Town|| Henry||
 * Antioch|| Village|| Lake||
 * Apple River|| Village|| Jo Daviess||
 * Appleton|| Unincorporated|| Knox||
 * Aptakisic|| Unincorporated|| Lake||
 * Arcadia|| Unincorporated|| Morgan||
 * Archer|| Unincorporated|| Sangamon||
 * Archie || Town|| Vermilion|| (south of Sidell)
 * Arenzville|| Village|| Cass||
 * Argenta|| Village|| Macon||
 * Argyle‡|| Unincorporated|| Winnebago||
 * Arlington Heights|| Village|| Cook||
 * Arlington Heights|| Village|| Lake||
 * Arlington|| Village|| Bureau||
 * Armington|| Village|| Tazewell||
 * Arnold|| Unincorporated|| Morgan||
 * Aroma Park|| Village|| Kankakee||
 * Arrowsmith|| Village|| McLean||
 * Arthur|| Village|| Douglas||
 * Arthur|| Village|| Moultrie||
 * Ashkum|| Village|| Iroquois||
 * Ashland|| Village|| Cass||
 * Ashmore|| Village|| Coles||
 * Ashton|| Village|| Lee||
 * Astoria|| Village|| Fulton||
 * Atkinson|| Town|| Henry||
 * Atlas|| Unincorporated|| Pike||
 * Atterberry|| Unincorporated|| Menard||
 * Atwater|| Unincorporated|| Macoupin||
 * Atwood|| Village|| Douglas||
 * Atwood|| Village|| Piatt||
 * Augsburg|| Unincorporated|| Fayette||
 * Augusta|| Village|| Hancock||
 * Avena|| Unincorporated|| Fayette||
 * Aviston|| Village|| Clinton||
 * Avon|| Village|| Fulton||
 * Babylon|| Unincorporated|| Fulton||
 * Bader|| Unincorporated|| Schuyler||
 * Bakerville|| Unincorporated|| Jefferson||
 * Bakerville|| Unincorporated|| Logan||
 * Balcom|| Unincorporated|| Union||
 * Baldwin|| Village|| Randolph||
 * Banner|| Village|| Fulton||
 * Bannockburn|| Village|| Lake||
 * Barclay|| Unincorporated|| Sangamon||
 * Bardolph|| Village|| McDonough||
 * Bargerville|| Unincorporated|| Massas||
 * Barnes|| Unincorporated|| McLean||
 * Barr|| Unincorporated|| Sangamon||
 * Barrington Hills || Village|| Cook|| (partly in Kane County, Lake County, and McHenry County)
 * Barrington Hills|| Village|| Kane||
 * Barrington Hills|| Village|| Lake||
 * Barrington Hills|| Village|| McHenry||
 * Barrington|| Village|| Cook|| (partly in Lake County)
 * Barrington|| Village|| Lake||
 * Barrow|| Unincorporated|| Greene||
 * Bartelso|| Village|| Clinton||
 * Bartlett || Village|| Cook|| (partly in DuPage County and Kane County)
 * Bartlett || Village|| DuPage|| (part)
 * Bartlett || Village|| Kane|| (part)
 * Bartonville|| Village|| Peoria||
 * Basco|| Village|| Hancock||
 * Batchtown|| Village|| Calhoun||
 * Bates|| Unincorporated|| Sangamon||
 * Bath|| Village|| Mason||
 * Bay View Gardens|| Village|| Woodford||
 * Bayle City|| Unincorporated|| Fayette||
 * Baylis|| Village|| Pike||
 * Beach Park|| Village|| Lake||
 * Bearsdale|| Unincorporated|| Macon||
 * Beaty|| Unincorporated|| Fulton||
 * Beaverville|| Village|| Iroquois||
 * Beckemeyer|| Village|| Clinton||
 * Bedford Park|| Village|| Cook||
 * Beecher City|| Village|| Effingham||
 * Beecher|| Village|| Will||
 * Beechville|| Unincorporated|| Calhoun||
 * Belknap|| Village|| Johnson||
 * Bell|| Unincorporated|| Logan||
 * Belle Prairie City|| Town|| Hamilton||
 * Belle Rive|| Village|| Jefferson||
 * Belleview|| Unincorporated|| Calhoun||
 * Bellevue|| Village|| Peoria||
 * Bellflower|| Village|| McLean||
 * Bellmont|| Village|| Wabash||
 * Belltown|| Unincorporated|| Greene||
 * Bellwood|| Village|| Cook||
 * Beltrees|| Unincorporated|| Jersey||
 * Bement|| Village|| Piatt||
 * Bensenville || Village|| DuPage|| (part)
 * Bensenville|| Village|| Cook|| (partly in DuPage County)
 * Benson|| Village|| Woodford||
 * Bentley|| Town|| Hancock||
 * Bentown|| Unincorporated|| McLean||
 * Berdan|| Unincorporated|| Greene||
 * Berkeley|| Village|| Cook||
 * Berlin|| Village|| Sangamon||
 * Bernadotte|| Unincorporated|| Fulton||
 * Berryville|| Unincorporated|| Richland||
 * Bethalto|| Village|| Madison||
 * Bethany|| Village|| Moultrie||
 * Beverly|| Unincorporated|| Adams||
 * Big Foot Prairie|| Unincorporated|| McHenry||
 * Big Rock|| Village|| Kane||
 * Biggs|| Unincorporated|| Mason||
 * Biggsville|| Village|| Henderson||
 * Bigneck|| Unincorporated|| Adams||
 * Billett|| Unincorporated|| Lawrence||
 * Bingham|| Village|| Fayette||
 * Birds|| Village|| Lawrence||
 * Birmingham|| Unincorporated|| Schuyler||
 * Bishop Hill|| Village|| Henry||
 * Bishop|| Unincorporated|| Mason||
 * Bissell|| Unincorporated|| Sangamon||
 * Black|| Unincorporated|| Edwards||
 * Blairsville|| Unincorporated|| Hamilton|| (Flannigan's Store)
 * Blandinsville|| Village|| McDonough||
 * Blood|| Unincorporated|| Edwards||
 * Bloomfield|| Unincorporated|| Johnson||
 * Bloomingdale|| Village|| DuPage||
 * Bloomington Heights|| Unincorporated|| McLean||
 * Blue Grass City|| Town|| Vermilion||
 * Blue Mound|| Village|| Macon||
 * Blue Ridge|| Unincorporated|| Piatt|| Former places
 * Bluff City|| Unincorporated|| Fayette||
 * Bluff City|| Unincorporated|| Schuyler||
 * Bluff Springs|| Village|| Cass||
 * Bluffs|| Village|| Scott||
 * Bluford|| Village|| Jefferson||
 * Blyton|| Unincorporated|| Fulton||
 * Bobtown|| Unincorporated|| Menard||
 * Boden|| Unincorporated|| Mercer||
 * Bogota|| Unincorporated|| Jasper||
 * Boles|| Unincorporated|| Johnson||
 * Bolingbrook || Village|| Will|| (part)
 * Bolingbrook|| Village|| DuPage|| (part)
 * Bolton|| Unincorporated|| Stephenson||
 * Bondville|| Town|| Champaign||
 * Bone Gap|| Village|| Edwards||
 * Bonfield|| Village|| Kankakee||
 * Bonnie|| Village|| Jefferson||
 * Boos|| Unincorporated|| Jasper||
 * Boulder Hill|| Unincorporated|| Kendall||
 * Bourbonnais|| Village|| Kankakee||
 * Bowen|| Village|| Hancock||
 * Bowen|| Village|| Hancock||
 * Bowlesville|| Unincorporated|| Gallatin||
 * Boyd|| Unincorporated|| Jefferson||
 * Boyleston|| Unincorporated|| Wayne||
 * Braceville|| Village|| Grundy||
 * Braden|| Unincorporated|| Hamilton||
 * Bradford|| Village|| Stark||
 * Bradfordton|| Unincorporated|| Sangamon||
 * Bradley|| Village|| Kankakee||
 * Breckenridge|| Unincorporated|| Sangamon||
 * Breeds|| Unincorporated|| Fulton||
 * Bremen|| Unincorporated|| Randolph||
 * Brereton|| Unincorporated|| Fulton||
 * Bridgeview|| Village|| Cook||
 * Brighton|| Village|| Jersey||
 * Brighton|| Village|| Macoupin||
 * Brimfield|| Village|| Peoria||
 * Bristol|| Unincorporated|| Kendall||
 * Broadlands|| Town|| Champaign||
 * Broadview|| Village|| Cook||
 * Broadwell|| Village|| Logan||
 * Brocton|| Village|| Edgar||
 * Brookfield|| Village|| Cook||
 * Brooklyn|| Unincorporated|| Schuyler||
 * Brooklyn|| Village|| St. Clair||
 * Broughton|| Village|| Hamilton||
 * Brownfield|| Unincorporated|| Pope||
 * Browning|| Village|| Schuyler||
 * Browns|| Village|| Edwards||
 * Brownstown|| Village|| Fayette||
 * Brownsville|| Unincorporated|| White||
 * Brussels|| Village|| Calhoun||
 * Bryant|| Village|| Fulton||
 * Buckhart|| Unincorporated|| Sangamon||
 * Buckhorn Corners|| Unincorporated|| Stephenson||
 * Buckingham|| Village|| Kankakee||
 * Buckley|| Village|| Iroquois||
 * Buckner|| Village|| Franklin||
 * Buda|| Village|| Bureau||
 * Buena Vista|| Unincorporated|| Saline||
 * Buena Vista|| Unincorporated|| Stephenson||
 * Buffalo Grove || Village|| Cook|| (partly in Lake County)
 * Buffalo Grove|| Village|| Lake||
 * Buffalo Hart|| Unincorporated|| Sangamon||
 * Buffalo Prairie|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Buffalo|| Village|| Sangamon||
 * Bull Valley|| Village|| McHenry||
 * Bulpitt|| Village|| Christian||
 * Buncombe|| Village|| Johnson||
 * Bungay|| Unincorporated|| Hamilton||
 * Bungay|| Unincorporated|| White||
 * Bureau Junction|| Village|| Bureau||
 * Burgess|| Unincorporated|| Mercer||
 * Burksville Station|| Unincorporated|| Monroe||
 * Burksville|| Unincorporated|| Monroe||
 * Burlington|| Village|| Kane||
 * Burnham|| Village|| Cook||
 * Burnside|| Unincorporated|| Hancock||
 * Burnt Prairie|| Village|| White||
 * Burr Ridge || Village|| Cook|| (partly in DuPage County)
 * Burr Ridge|| Village|| DuPage|| (part)
 * Burton|| Unincorporated|| Adams||
 * Burtons Bridge|| Unincorporated|| McHenry||
 * Burtonview|| Unincorporated|| Logan||
 * Bush|| Village|| Williamson||
 * Butler|| Village|| Montgomery||
 * Butler's Point|| Town|| Vermilion|| (see Catlin)
 * Cabery|| Village|| Ford||
 * Cable|| Unincorporated|| Mercer||
 * Cache|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Cahokia|| Village|| St. Clair||
 * Caledonia|| Village|| Boone||
 * Calhoun|| Village|| Richland||
 * Calumet Park|| Village|| Cook||
 * Calvin|| Unincorporated|| White||
 * Camargo|| Village|| Douglas||
 * Cambria|| Village|| Williamson||
 * Cambridge|| Village|| Henry||
 * Camden|| Village|| Schuyler||
 * Cameron|| Unincorporated|| Warren||
 * Camp Ground|| Unincorporated|| Jefferson||
 * Camp Grove|| Unincorporated|| Marshall||
 * Camp Point|| Village|| Adams||
 * Camp Point|| Village|| Adams||
 * Campbell Hill|| Village|| Jackson||
 * Campbell's Island|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Campton Hills|| Village|| Kane||
 * Campus|| Village|| Livingston||
 * Cantrall|| Village|| Sangamon||
 * Capron|| Village|| Boone||
 * Carbon Cliff|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Carbon Hill|| Village|| Grundy||
 * Carlock|| Village|| McLean||
 * Carman|| Unincorporated|| Henderson||
 * Carol Stream|| Village|| DuPage||
 * Carpentersville|| Village|| Kane||
 * Carrier Mills|| Village|| Saline|| (Morrilsville)
 * Carthage Lake|| Unincorporated|| Henderson||
 * Cary|| Village|| McHenry||
 * Caseyville|| Village|| St. Clair||
 * Castle Junction|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Castleton|| Unincorporated|| Stark||
 * Cave-In-Rock|| Village|| Hardin||
 * Cedar Point|| Village|| LaSalle||
 * Cedarville|| Village|| Stephenson||
 * Centerville|| Unincorporated|| Piatt|| Former places
 * Centerville|| Unincorporated|| White||
 * Central City|| Village|| Marion||
 * Cerro Gordo|| Village|| Piatt||
 * Chadwick|| Village|| Carroll||
 * Chaflin Bridge|| Unincorporated|| Monroe||
 * Chambersburg|| Unincorporated|| Pike||
 * Chamness|| Town|| Williamson|| Ghost Towns
 * Chandlerville|| Village|| Cass||
 * Channahon (part)|| Village|| Grundy||
 * Channahon || Village|| Will|| (part)
 * Chapin|| Village|| Morgan||
 * Chapman|| Unincorporated|| Montgomery||
 * Chatham|| Village|| Sangamon||
 * Chatsworth|| Town|| Livingston||
 * Chauncey|| Unincorporated|| Lawrence||
 * Chautauqua|| Unincorporated|| Jersey||
 * Chebanse|| Village|| Iroquois||
 * Chebanse|| Village|| Kankakee||
 * Checkrow|| Unincorporated|| Fulton||
 * Cherry Valley|| Village|| Boone||
 * Cherry Valley|| Village|| Winnebago||
 * Cherry|| Village|| Bureau||
 * Chesterfield|| Village|| Macoupin||
 * Chestervale|| Unincorporated|| Logan||
 * Chicago Ridge|| Village|| Cook||
 * Cicero|| Town|| Cook||
 * Cimic|| Unincorporated|| Sangamon||
 * Cisco|| Village|| Piatt||
 * Cisne|| Village|| Wayne||
 * Cissna Park|| Village|| Iroquois||
 * Claremont|| Village|| Richland||
 * Clarendon Hills|| Village|| DuPage||
 * Clarksburg|| Unincorporated|| Shelby||
 * Clarksdale|| Unincorporated|| Christian||
 * Clarksville|| Unincorporated|| Clark||
 * Clay City|| Village|| Clay||
 * Clayton|| Village|| Adams||
 * Clayton|| Village|| Adams||
 * Clayville|| Unincorporated|| Sangamon||
 * Clear Lake|| Village|| Sangamon||
 * Clements|| Unincorporated|| Morgan||
 * Cleveland|| Village|| Henry||
 * Clifford|| Town|| Williamson|| Ghost Towns
 * Clifton|| Village|| Iroquois||
 * Cloverdale|| Unincorporated|| DuPage||
 * Cloverleaf|| Unincorporated|| Madison||
 * Coal City || Village|| Will|| (part)
 * Coal City|| Village|| Grundy||
 * Coal Valley || Village|| Henry|| (partial)
 * Coal Valley|| Village|| ]]Rock Island County, Illinois|Rock Island]]|| (part)
 * Coalton|| Village|| Montgomery||
 * Coatsburg|| Village|| Adams||
 * Coatsburg|| Village|| Adams||
 * Cobden|| Village|| Union||
 * Cold Brook|| Unincorporated|| Warren||
 * Coleta|| Village|| Whiteside||
 * Colfax|| Village|| McLean||
 * Colmar|| Unincorporated|| Hancock||
 * Colp|| Village|| Williamson||
 * Columbia Heights|| Unincorporated|| Knox||
 * Columbus|| Village|| Adams||
 * Columbus|| Village|| Adams||
 * Colusa|| Unincorporated|| Hancock||
 * Combs|| Unincorporated|| Piatt|| Former places
 * Comer|| Unincorporated|| Macoupin||
 * Compton|| Village|| Lee||
 * Conant|| Unincorporated|| Perry||
 * Concord|| Village|| Morgan||
 * Confidence|| Unincorporated|| Fayette||
 * Congerville|| Village|| Woodford||
 * Conkeytown|| Town|| Vermilion||
 * Cooksville|| Village|| McLean||
 * Coral|| Unincorporated|| McHenry||
 * Cordova|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Corinth|| Unincorporated|| Williamson||
 * Cornell|| Village|| Livingston||
 * Cortland|| Town|| DeKalb||
 * Cottage Grove|| Unincorporated|| Saline||
 * Cottage Hills|| Unincorporated|| Madison||
 * Cottonwood|| Unincorporated|| Gallatin||
 * Coulterville|| Village|| Randolph||
 * Covell|| Unincorporated|| McLean||
 * Cowden|| Village|| Shelby||
 * Cowling|| Unincorporated|| Wabash||
 * Crab Orchard|| Unincorporated|| Williamson||
 * Crainville|| Village|| Williamson||
 * Cramers|| Unincorporated|| Peoria||
 * Cravat|| Unincorporated|| Jefferson||
 * Crenshaw|| Unincorporated|| Williamson||
 * Crescent City|| Village|| Iroquois||
 * Creston|| Village|| Ogle||
 * Crestview|| Unincorporated|| Wayne||
 * Crestwood|| Village|| Cook||
 * Crete|| Village|| Will||
 * Creve Coeur|| Village|| Tazewell||
 * Crisp|| Unincorporated|| Wayne||
 * Croft|| Unincorporated|| Logan||
 * Cropsey|| Unincorporated|| McLean||
 * Crossville|| Village|| White||
 * Cullom|| Village|| Livingston||
 * Cumberland|| Unincorporated|| Wayne||
 * Curran|| Village|| Sangamon||
 * Cutler|| Village|| Perry||
 * Cypress|| Village|| Johnson||
 * Dahinda|| Unincorporated|| Knox||
 * Dahlgren|| Village|| Hamilton||
 * Dakota|| Town|| Stephenson||
 * Dale|| Unincorporated|| Hamilton||
 * Dalton City|| Village|| Moultrie||
 * Dalzell (part)|| Village|| Bureau||
 * Dalzell || Village|| LaSalle|| (part)
 * Damascus|| Unincorporated|| Stephenson||
 * Damiansville|| Village|| Clinton||
 * Dana|| Village|| LaSalle||
 * Danforth|| Village|| Iroquois||
 * Danvers|| Village|| McLean||
 * Davis Junction|| Village|| Ogle||
 * Davis|| Village|| Stephenson||
 * Dawson|| Village|| Sangamon||
 * De Land|| Village|| Piatt||
 * De Pue|| Village|| Bureau||
 * De Soto|| Village|| Jackson||
 * Decorra|| Unincorporated|| Henderson||
 * Deer Creek|| Village|| Tazewell||
 * Deer Creek|| Village|| Woodford||
 * Deer Grove|| Village|| Whiteside||
 * Deer Park|| Village|| Cook|| (partly in Lake County)
 * Deer Park|| Village|| Lake||
 * Deer Plain|| Unincorporated|| Calhoun||
 * Deerfield|| Village|| Cook|| (partly in Lake County)
 * Deerfield|| Village|| Lake||
 * Dees|| Village|| Cumberland||
 * Delafield|| Unincorporated|| Hamilton||
 * Delavan|| Village|| Tazewell||
 * Delhi|| Unincorporated|| Jersey||
 * Delong|| Unincorporated|| Knox||
 * Delta|| Unincorporated|| Saline||
 * Democrat Spring|| Unincorporated|| Jersey||
 * Denmark|| Town|| Vermilion||
 * Denver|| Unincorporated|| Hancock||
 * Depler Springs|| Unincorporated|| Fulton||
 * Derby|| Unincorporated|| Saline||
 * Detroit|| Village|| Pike||
 * DeWitt|| Village|| Dewitt||
 * Dewmaine|| Town|| Williamson|| Ghost Towns
 * Dewmaine|| Unincorporated|| Williamson||
 * Diamond || Village|| Will|| (part)
 * Diamond City|| Unincorporated|| Hamilton||
 * Diamond Lake|| Unincorporated|| Lake||
 * Diamond|| Village|| Grundy||
 * Dieterich|| Village|| Effingham||
 * Dillon|| Unincorporated|| Tazewell||
 * Divernon|| Village|| Sangamon||
 * Divide|| Unincorporated|| Jefferson||
 * Dix|| Village|| Jefferson||
 * Dixmoor|| Village|| Cook||
 * Dixon Springs|| Unincorporated|| Johnson||
 * Doddsville|| Unincorporated|| Schuyler||
 * Dogtown|| Unincorporated|| White||
 * Dollville|| Unincorporated|| Shelby||
 * Dolton|| Village|| Cook||
 * Dongola|| Village|| Union||
 * Donnellson|| Village|| Bond||
 * Donnellson|| Village|| Montgomery||
 * Donovan|| Village|| Iroquois||
 * Dorchester|| Village|| Macoupin||
 * Dorris Heights|| Unincorporated|| Saline||
 * Dorrisville|| Unincorporated|| Saline||
 * Dorsey|| Unincorporated|| Madison||
 * Douglas|| Unincorporated|| Knox||
 * Douglas|| Unincorporated|| St. Clair||
 * Dover|| Village|| Bureau||
 * Dow|| Unincorporated|| Jersey||
 * Dowell|| Village|| Jackson||
 * Downers Grove|| Village|| DuPage||
 * Downs|| Village|| McLean||
 * Drake|| Unincorporated|| Greene|| (Hanks Station)
 * Drivers|| Unincorporated|| Jefferson||
 * Du Bois|| Village|| Washington||
 * Duncan Mills|| Unincorporated|| Fulton||
 * Duncan|| Unincorporated|| Stark||
 * Dundas|| Unincorporated|| Richland||
 * Dunfermline|| Village|| Fulton||
 * Dunkel|| Unincorporated|| Christian||
 * Dunlap Lake|| Unincorporated|| Madison||
 * Dunlap|| Village|| Peoria||
 * Dupo|| Village|| St. Clair||
 * Durand|| Village|| Winnebago||
 * Duvall|| Unincorporated|| Shelby||
 * Dwight (part)|| Village|| Grundy||
 * Dwight|| Village|| Livingston||
 * Dykersburg|| Unincorporated|| Williamson||
 * Eagarville|| Village|| Macoupin||
 * Eagle Park|| Unincorporated|| Madison||
 * Eagle Point Bay|| Unincorporated|| Johnson||
 * Eagle|| Unincorporated|| Saline||
 * East Alton|| Village|| Madison||
 * East Brooklyn|| Village|| Grundy||
 * East Cape Girardeau|| Village|| Alexander County, Illinois|Alexander]]||
 * East Carondelet|| Village|| St. Clair||
 * East Dundee|| Village|| Cook|| (partly in Kane County)
 * East Dundee|| Village|| Kane|| (part)
 * East Galesburg|| Village|| Knox||
 * East Gillespie|| Village|| Macoupin||
 * East Hannibal|| Unincorporated|| Pike||
 * East Hardin|| Unincorporated|| Greene||
 * East Hazel Crest|| Village|| Cook||
 * East Newbern|| Unincorporated|| Jersey||
 * Easton|| Village|| Mason||
 * Eddyville|| Village|| Pope||
 * Edelstein|| Unincorporated|| Peoria||
 * Edgewater|| Unincorporated|| Peoria||
 * Edgewood|| Village|| Effingham||
 * Edgington|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Edinburg|| Village|| Christian||
 * Edwards|| Unincorporated|| Peoria||
 * El Dara|| Village|| Pike||
 * El Paso|| City|| Woodford||
 * El Vista|| Unincorporated|| Peoria||
 * Elba|| Unincorporated|| Gallatin||
 * Elburn|| Village|| Kane||
 * Elco|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Elderville|| Unincorporated|| Hancock||
 * Eldred|| Village|| Greene||
 * Eleanor|| Unincorporated|| Warren||
 * Eleroy|| Unincorporated|| Stephenson||
 * Eliza|| Unincorporated|| Mercer||
 * Elizabeth|| Village|| Jo Daviess||
 * Elizabethtown|| Village|| Henderson||
 * Elk Grove Village || Village|| Cook|| (partly in DuPage County)
 * Elk Grove Village|| Village|| DuPage|| (part)
 * Elkhart|| Village|| Logan||
 * Elkton|| Unincorporated|| Washington||
 * Elkville|| Village|| Jackson||
 * Ellery|| Unincorporated|| Edwards||
 * Ellery|| Unincorporated|| Wayne||
 * Elliott|| Village|| Ford||
 * Ellis || Town|| Vermilion|| (Middlefork Township)
 * Ellis Grove|| Village|| Randolph||
 * Ellisville|| Village|| Fulton||
 * Ellsworth|| Village|| McLean||
 * Elmira|| Unincorporated|| Stark||
 * Elmore|| Unincorporated|| Peoria||
 * Elmwood Park|| Village|| Cook||
 * Elsah|| Village|| Jersey||
 * Elvaston|| Village|| Hancock||
 * Elvira|| Unincorporated|| Johnson||
 * Elwood|| Village|| Will||
 * Emden|| Village|| Logan||
 * Emington|| Village|| Livingston||
 * Energy|| Village|| Williamson||
 * Enfield|| Village|| White||
 * Enion|| Unincorporated|| Fulton||
 * Enos|| Unincorporated|| Macoupin||
 * Enterprise|| Unincorporated|| Wayne||
 * Eola|| Unincorporated|| DuPage||
 * Epworth|| Unincorporated|| White||
 * Equality|| Village|| Gallatin||
 * Erie|| Village|| Whiteside||
 * Essex|| Village|| Kankakee||
 * Eureka|| City|| Woodford||
 * Evans|| Unincorporated|| Logan||
 * Evansville|| Village|| Randolph||
 * Evarts|| Unincorporated|| Stephenson||
 * Evergreen Park|| Village|| Cook||
 * Ewing|| Village|| Franklin||
 * Exeter|| Village|| Scott||
 * Fairmont City|| Village|| St. Clair||
 * Fairview|| Village|| Fulton||
 * Fall Creek|| Unincorporated|| Adams||
 * Falmouth|| Unincorporated|| Jasper||
 * Fancher|| Unincorporated|| Shelby||
 * Fancy Prairie|| Unincorporated|| Menard||
 * Farina|| Village|| Fayette||
 * Farmersville|| Village|| Montgomery||
 * Farmingdale|| Unincorporated|| Sangamon||
 * Fayetteville|| Village|| St. Clair||
 * Fayville|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Feakeyville|| Unincorporated|| Hamilton||
 * Ferris|| Village|| Hancock||
 * Fiatt|| Unincorporated|| Fulton||
 * Fidelity|| Village|| Jersey||
 * Fieldon|| Village|| Jersey||
 * Fillmore|| Village|| Montgomery||
 * Findlay|| Village|| Shelby||
 * Fisher|| Town|| Champaign||
 * Fishhook|| Unincorporated|| Pike||
 * Flanagan|| Village|| Livingston||
 * Flat Rock|| Village|| Crawford||
 * Flint|| Unincorporated|| Hamilton||
 * Florence|| Unincorporated|| Stephenson||
 * Florence|| Village|| Pike||
 * Florid|| Unincorporated|| Putnam||
 * Flossmoor|| Village|| Cook||
 * Flowerfield|| Unincorporated|| DuPage||
 * Fogarty|| Unincorporated|| Logan||
 * Foosland|| Town|| Champaign||
 * Ford Heights|| Village|| Cook||
 * Forest City|| Village|| Mason||
 * Forest Park|| Village|| Cook||
 * Forest View|| Village|| Cook||
 * Forrest|| Village|| Livingston||
 * Forreston|| Village|| Ogle||
 * Forsyth|| Village|| Macon||
 * Fort Sheridan|| Unincorporated|| Lake||
 * Foster Pond|| Unincorporated|| Monroe||
 * Fountain Green|| Unincorporated|| Hancock||
 * Fountain|| Unincorporated|| Monroe||
 * Fowler|| Unincorporated|| Adams||
 * Fox Lake|| Village|| Lake||
 * Fox Lake|| Village|| McHenry||
 * Fox River Grove|| Village|| Lake||
 * Fox River Grove|| Village|| McHenry||
 * Francis|| Unincorporated|| Saline||
 * Frankfort || Village|| Will|| (part)
 * Frankfort|| Village|| Cook|| (partly in Will County)
 * Franklin Grove|| Village|| Lee||
 * Franklin Park|| Village|| Cook||
 * Franklin|| Town|| Vermilion|| (see Bismarck)
 * Franklin|| Village|| Morgan||
 * Franklinville|| Unincorporated|| McHenry||
 * Frederick|| Unincorporated|| Schuyler||
 * Freeburg|| Village|| St. Clair||
 * Freeman Spur|| Village|| Franklin||
 * Freeman Spur|| Village|| Williamson||
 * Fremont Center|| Unincorporated|| Lake||
 * Friendsville|| Unincorporated|| Wabash||
 * Fults|| Village|| Monroe||
 * Funks Grove|| Unincorporated|| McLean||
 * Future City|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Galatia|| Village|| Saline||
 * Gale|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Galena Knolls|| Unincorporated|| Peoria||
 * Galesville|| Unincorporated|| Perry||
 * Ganntown|| Unincorporated|| Johnson||
 * Garden Heights|| Unincorporated|| Saline||
 * Garden Prairie|| Unincorporated|| Boone||
 * Gardner|| Village|| Grundy||
 * Garrett|| Village|| Douglas||
 * Garrison|| Unincorporated|| Hamilton||
 * Gaskins City|| Unincorporated|| Saline||
 * Gays|| Village|| Moultrie||
 * Geff|| Unincorporated|| Wayne||
 * Geneva|| Town|| Vermilion||
 * Gerlaw|| Unincorporated|| Warren||
 * German Valley|| Village|| Stephenson||
 * Germantown Hills|| City|| Woodford||
 * Germantown|| Village|| Clinton||
 * Gibsonia|| Unincorporated|| Gallatin||
 * Gifford|| Town|| Champaign||
 * Gila|| Unincorporated|| Jasper||
 * Gilbert || Town|| Vermilion|| (see Alvin)
 * Gilberts|| Village|| Kane||
 * Gilchrist|| Unincorporated|| Fulton||
 * Gilchrist|| Unincorporated|| Mercer||
 * Gilead|| Unincorporated|| Calhoun||
 * Gilmer|| Unincorporated|| Lake||
 * Gilson|| Unincorporated|| Knox||
 * Ginger Hill|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Gladstone|| Village|| Henderson||
 * Glasford|| Village|| Peoria||
 * Glasgow|| Village|| Scott||
 * Glen Carbon|| Village|| Madison||
 * Glen Ellyn|| Village|| DuPage||
 * Glen|| Unincorporated|| Madison||
 * Glenarm|| Unincorporated|| Sangamon||
 * Glencoe|| Village|| Cook||
 * Glendale Heights|| Village|| DuPage||
 * Glenn|| Unincorporated|| Randolph||
 * Glenview|| Village|| Cook||
 * Glenwood|| Village|| Cook||
 * Godfrey|| Village|| Madison||
 * Godley|| Village|| Grundy||
 * Godley|| Village|| Will|| (part)
 * Golden Eagle|| Unincorporated|| Calhoun||
 * Golden Gate|| Village|| Wayne||
 * Golden|| Village|| Adams||
 * Golden|| Village|| Adams||
 * Goldengate|| Unincorporated|| Wayne||
 * Golf|| Village|| Cook||
 * Good Hope|| Village|| McDonough||
 * Goodfield|| Village|| Woodford||
 * Goreville|| Village|| Johnson||
 * Gorham|| Village|| Jackson||
 * Gossett|| Unincorporated|| White||
 * Grand Ridge|| Village|| LaSalle||
 * Grandview|| Village|| Sangamon||
 * Grant Park|| Village|| Kankakee||
 * Grantfork|| Village|| Madison||
 * Grantsburg|| Unincorporated|| Johnson||
 * Granville|| Village|| Putnam||
 * Grass Lake|| Unincorporated|| Lake||
 * Grayslake|| Village|| Lake||
 * Green Oaks|| Village|| Lake||
 * Green Valley|| Village|| Tazewell||
 * Greenup|| Village|| Cumberland||
 * Greenview|| Village|| Menard||
 * Greenwood|| Village|| McHenry||
 * Gridley|| Village|| McLean||
 * Grigg|| Unincorporated|| Randolph||
 * Griggsville Landing|| Unincorporated|| Pike|| Ghost Town
 * Groveland|| Unincorporated|| Tazewell||
 * Gulf Port|| Village|| Henderson||
 * Gurnee|| Village|| Lake||
 * Hagaman|| Unincorporated|| Macoupin||
 * Hagarstown|| Unincorporated|| Fayette||
 * Hainesville|| Village|| Lake||
 * Halfway|| Town|| Williamson|| (Little Juarez) Ghost town
 * Halfway|| Town|| Williamson|| Ghost Towns
 * Hamburg|| Village|| Calhoun||
 * Hamel|| Village|| Madison||
 * Hamlet|| Unincorporated|| Mercer||
 * Hamletsburg|| Unincorporated|| Pope||
 * Hammond|| Village|| Piatt||
 * Hampshire|| Village|| Kane||
 * Hampton|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Hanaford|| Village|| Franklin||
 * Hanna City|| Village|| Peoria||
 * Hanover Park|| Village|| Cook|| (partly in DuPage County)
 * Hanover Park|| Village|| DuPage|| (part)
 * Hanover|| Village|| Jo Daviess||
 * Harco|| Unincorporated|| Saline||
 * Hardin|| Village|| Calhoun||
 * Harding|| Unincorporated|| LaSalle||
 * Harmon|| Village|| Lee||
 * Harmony|| Unincorporated|| Jefferson||
 * Harmony|| Unincorporated|| McHenry||
 * Harness|| Unincorporated|| Logan||
 * Harris|| Unincorporated|| Piatt|| Former places
 * Harrison|| Unincorporated|| Winnebago||
 * Harrisonville|| Unincorporated|| Monroe||
 * Harristown|| Village|| Macon||
 * Hartford|| Village|| Madison||
 * Hartland|| Unincorporated|| McHenry||
 * Hartsburg|| Village|| Logan||
 * Harvel|| Village|| Christian||
 * Harvel|| Village|| Montgomery||
 * Harwood Heights|| Village|| Cook||
 * Hawthorn Woods|| Village|| Lake||
 * Hazel Crest|| Village|| Cook||
 * Hazel Dell|| Village|| Cumberland||
 * Hebron|| Village|| McHenry||
 * Hecker|| Village|| Monroe||
 * Hecker|| Village|| St. Clair||
 * Helena|| Unincorporated|| Lawrence||
 * Helmar|| Unincorporated|| Kendall||
 * Henderson Grove|| Unincorporated|| Knox||
 * Henderson|| Village|| Knox||
 * Hennepin|| Village|| Putnam||
 * Henton|| Unincorporated|| Shelby||
 * Herald|| Unincorporated|| White||
 * Herborn|| Unincorporated|| Shelby||
 * Hermon|| Unincorporated|| Knox||
 * Herod|| Unincorporated|| Pope||
 * Herrick|| Village|| Shelby||
 * Herscher|| Village|| Kankakee||
 * Hettick|| Village|| Macoupin||
 * Hewittsville|| Unincorporated|| Christian||
 * Heyworth|| Village|| McLean||
 * Hickory Grove|| Unincorporated|| Adams||
 * Hidalgo|| Village|| Jasper||
 * High Meadows|| Unincorporated|| Peoria||
 * Hillcrest|| Village|| Ogle||
 * Hillsdale|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Hillside|| Village|| Cook||
 * Hillview|| Village|| Greene||
 * Hinckley|| Village|| DeKalb||
 * Hindsboro|| Village|| Douglas||
 * Hinsdale || Village|| Cook|| (partly in DuPage County)
 * Hinsdale|| Village|| DuPage|| (part)
 * Hinton|| Unincorporated|| Shelby||
 * Hodgkins|| Village|| Cook||
 * Hoffman Estates || Village|| Cook|| (partly in Kane County)
 * Hoffman Estates || Village|| Kane|| (part)
 * Hoffman|| Village|| Clinton||
 * Holder|| Unincorporated|| McLean||
 * Holiday Hills|| Village|| McHenry||
 * Holiday Shores|| Unincorporated|| Madison||
 * Hollowayville|| Village|| Bureau||
 * Holmes Center|| Unincorporated|| Peoria||
 * Homer Glen|| Village|| Will||
 * Homer|| Town|| Champaign||
 * Homewood|| Village|| Cook||
 * Honey Bend|| Unincorporated|| Montgomery||
 * Honey Creek|| Unincorporated|| Crawford||
 * Hoodville|| Unincorporated|| Hamilton||
 * Hooppole|| Village|| Henry||
 * Hopedale|| Village|| Tazewell||
 * Hopewell Estates|| Unincorporated|| Marshall||
 * Hopewell|| Village|| Marshall||
 * Hopkins Park|| Village|| Kankakee||
 * Hopper|| Unincorporated|| Henderson||
 * Horseshoe|| Unincorporated|| Gallatin||
 * Horseshoe|| Unincorporated|| Saline||
 * Hoyleton|| Village|| Washington||
 * Hubly|| Unincorporated|| Menard||
 * Hudson|| Village|| McLean||
 * Huegely|| Unincorporated|| Washington||
 * Huey|| Village|| Clinton||
 * Hugo|| Unincorporated|| Douglas||
 * Hull|| Village|| Pike||
 * Humboldt|| Village|| Coles||
 * Hume|| Village|| Edgar||
 * Humrick|| Town|| Vermilion||
 * Hunt City|| Unincorporated|| Jasper||
 * Huntley (part)|| Village|| Kane||
 * Huntley|| Village|| McHenry||
 * Huntsville|| Unincorporated|| Schuyler||
 * Hutsonville|| Unincorporated|| Crawford||
 * Hutsonville|| Village|| Crawford||
 * Idlewood|| Unincorporated|| Jefferson||
 * Illinois City|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Illiopolis|| Village|| Sangamon||
 * Imbs|| Unincorporated|| St. Clair||
 * Ina|| Village|| Jefferson||
 * Indian Creek|| Village|| Lake||
 * Indian Head Park|| Village|| Cook||
 * Industry|| Village|| McDonough||
 * Ingleside|| Unincorporated|| Lake||
 * Inverness|| Village|| Cook||
 * Iola|| Village|| Clay||
 * Ipava|| Village|| Fulton||
 * Iroquois|| Village|| Iroquois||
 * Irving|| Village|| Montgomery||
 * Irvington|| Village|| Washington||
 * Irwin|| Village|| Kankakee||
 * Island Grove|| Unincorporated|| Jasper||
 * Island Grove|| Unincorporated|| Sangamon||
 * Island Lake|| Village|| Lake||
 * Island Lake|| Village|| McHenry||
 * Itasca|| Village|| DuPage||
 * Iuka|| Village|| Marion||
 * Ivanhoe|| Unincorporated|| Lake||
 * Ivesdale|| Town|| Champaign||
 * Jefferson City, IL|| Unincorporated|| Hamilton||
 * Jeffersonville|| Village|| Wayne||
 * Jeisyville|| Village|| Christian||
 * Jerome|| Village|| Sangamon||
 * Jewett|| Village|| Cumberland||
 * Johnsburg|| Village|| McHenry||
 * Johnsonville || Town|| Vermilion|| (Blount Township)
 * Johnsonville|| Village|| Wayne||
 * Joppa|| Village|| Massas||
 * Joy|| Village|| Mercer||
 * Junction City|| Village|| Marion||
 * Junction|| Village|| Gallatin||
 * Justice|| Village|| Cook||
 * Kampsville|| Village|| Calhoun||
 * Kane|| Village|| Greene||
 * Kaneville|| Village|| Kane||
 * Kangley|| Village|| LaSalle||
 * Kansas|| Village|| Edgar||
 * Kappa|| Village|| Woodford||
 * Karbers Ridge|| Unincorporated|| Hardin||
 * Kasbeer|| Unincorporated|| Bureau||
 * Kaskaskia|| Village|| Randolph||
 * Kaufman|| Unincorporated|| Madison||
 * Kedron|| Unincorporated|| Gallatin||
 * Keenes|| Village|| Wayne||
 * Keeneyville|| Unincorporated|| DuPage||
 * Keensburg|| Village|| Wabash||
 * Kell|| Village|| Marion||
 * Kellerville|| Unincorporated|| Adams||
 * Kemper|| Unincorporated|| Jersey||
 * Kempton|| Village|| Ford||
 * Kenilworth|| Village|| Cook||
 * Kenney|| Village|| Dewitt||
 * Kent|| Unincorporated|| Stephenson||
 * Keyesport|| Village|| Bond||
 * Keyesport|| Village|| Clinton||
 * Kilbourne|| Village|| Mason||
 * Kildeer|| Village|| Lake||
 * Kincaid|| Village|| Christian||
 * Kinderhook|| Village|| Pike||
 * Kingman|| Unincorporated|| Shelby||
 * Kingston Mines|| Village|| Peoria||
 * Kingston|| Unincorporated|| Adams||
 * Kingston|| Village|| DeKalb||
 * Kinsman|| Village|| Grundy||
 * Kirkland|| Village|| DeKalb||
 * Kirkwood|| Village|| Warren||
 * Klondike|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Kortcamp|| Unincorporated|| Montgomery||
 * La Crosse|| Unincorporated|| Hancock||
 * La Fayette|| Village|| Stark||
 * La Fox|| Unincorporated|| Kane||
 * La Grange Park|| Village|| Cook||
 * La Grange|| Village|| Cook||
 * La Moille|| Village|| Bureau||
 * La Place|| Unincorporated|| Piatt||
 * La Prairie Center|| Unincorporated|| Marshall||
 * La Prairie|| Village|| Adams||
 * La Prairie|| Village|| Adams||
 * La Rose|| Village|| Marshall||
 * Ladd|| Village|| Bureau||
 * Lake Barrington|| Village|| Lake||
 * Lake Bluff|| Village|| Lake||
 * Lake Centralia|| Unincorporated|| Greene||
 * Lake Fork|| Unincorporated|| Logan||
 * Lake in the Hills|| Village|| McHenry||
 * Lake Ka-ho|| Village|| Macoupin||
 * Lake Killarney|| Unincorporated|| McHenry||
 * Lake of Egypt|| Unincorporated|| Williamson||
 * Lake of the Woods|| Unincorporated|| Champaign||
 * Lake of the Woods|| Unincorporated|| Peoria||
 * Lake Piasa|| Unincorporated|| Jersey||
 * Lake Villa|| Village|| Lake||
 * Lake Zurich|| Village|| Lake||
 * Lakemoor|| Village|| Lake||
 * Lakemoor|| Village|| McHenry||
 * Lakeview || Unincorporated|| Saline|| (Pond Settlement)
 * Lakewood|| Unincorporated|| DuPage||
 * Lakewood|| Unincorporated|| Shelby||
 * Lakewood|| Village|| McHenry||
 * Lamb|| Unincorporated|| Hardin||
 * Lamotte|| Unincorporated|| Crawford||
 * Lancaster|| Unincorporated|| Wabash||
 * Langleyville|| Unincorporated|| Christian||
 * Lansing|| Village|| Cook||
 * Larchland|| Unincorporated|| Warren||
 * Latham|| Village|| Logan||
 * Latona|| Unincorporated|| Jasper||
 * Laura|| Unincorporated|| Peoria||
 * Lawler|| Unincorporated|| Gallatin||
 * Lawn Ridge|| Unincorporated|| Marshall||
 * Lawn Ridge|| Unincorporated|| Peoria||
 * Lawndale|| Unincorporated|| Logan||
 * Lawrence|| Unincorporated|| McHenry||
 * Layton|| Unincorporated|| Schuyler||
 * Leaf River|| Village|| Ogle||
 * Leamington|| Unincorporated|| Gallatin||
 * Ledford|| Unincorporated|| Saline||
 * Lee|| Village|| DeKalb||
 * Lee|| Village|| Lee||
 * Leeds|| Unincorporated|| Marshall||
 * Leesburg|| Unincorporated|| Fulton||
 * Leland|| Village|| LaSalle||
 * Lemont || Village|| Cook|| (partly in DuPage County and Will County)
 * Lemont || Village|| Will|| (part)
 * Lemont|| Village|| DuPage|| (part)
 * Lena|| Village|| Stephenson||
 * Lenzburg|| Village|| St. Clair||
 * Leonore|| Village|| LaSalle||
 * Lerna|| Village|| Coles||
 * Liberty|| Unincorporated|| Saline||
 * Liberty|| Village|| Adams||
 * Libertyville|| Village|| Lake||
 * Lick Creek|| Unincorporated|| Johnson||
 * Licking|| Unincorporated|| Crawford||
 * Lily Lake|| Village|| Kane||
 * Limestone|| Village|| Kankakee||
 * Lincolnshire|| Village|| Lake||
 * Lincolnwood|| Village|| Cook||
 * Lindenhurst|| Village|| Lake||
 * Lis|| Unincorporated|| Jasper||
 * Lisbon|| Village|| Kendall||
 * Lisle|| Village|| DuPage||
 * Literberry|| Unincorporated|| Morgan||
 * Little America|| Unincorporated|| Fulton||
 * Little Rock|| Unincorporated|| Kendall||
 * Little York|| Village|| Warren||
 * Littleton|| Village|| Schuyler||
 * Lively Grove|| Unincorporated|| Washington||
 * Liverpool|| Village|| Fulton||
 * Livingston|| Village|| Madison||
 * Loami|| Village|| Sangamon||
 * Lockhaven|| Unincorporated|| Jersey||
 * Loda|| Village|| Iroquois||
 * Lodge|| Unincorporated|| Piatt||
 * Logansport, IL|| Unincorporated|| Hamilton||
 * Lomax|| Village|| Henderson||
 * Lombard|| Village|| DuPage||
 * Lombardville|| Unincorporated|| Stark||
 * London Mills|| Village|| Fulton||
 * London Mills|| Village|| Knox|| (mostly in Fulton County)
 * Long Branch|| Unincorporated|| Saline||
 * Long Creek|| Village|| Macon||
 * Long Grove|| Village|| Lake||
 * Long Point|| Village|| Livingston||
 * Longview|| Town|| Champaign||
 * Loogootee|| Unincorporated|| Fayette||
 * Loon Lake|| Unincorporated|| Lake||
 * Loran|| Unincorporated|| Stephenson||
 * Lostant|| Village|| LaSalle||
 * Louisville|| Village|| Clay||
 * Lovilla|| Unincorporated|| Hamilton||
 * Lovington|| Village|| Moultrie||
 * Lowder|| Unincorporated|| Sangamon||
 * Lowpoint|| Unincorporated|| Woodford||
 * Lucas|| Unincorporated|| Logan||
 * Ludlow|| Town|| Champaign||
 * Lumaghi Heights|| Unincorporated|| Madison||
 * Lusk's Ferry|| Unincorporated|| Pope||
 * Lyndon|| Village|| Whiteside||
 * Lynnville|| Village|| Morgan||
 * Lynwood|| Village|| Cook||
 * Lyons|| Village|| Cook||
 * Lyttleville|| Unincorporated|| McLean||
 * Macedonia|| Village|| Franklin||
 * Macedonia|| Village|| Hamilton|| (partly in Franklin County)
 * Machesney Park|| Village|| Winnebago||
 * Mackinaw|| Village|| Tazewell||
 * Madonnaville|| Unincorporated|| Monroe||
 * Maeystown|| Village|| Monroe||
 * Magnolia|| Village|| Putnam||
 * Mahomet|| Town|| Champaign||
 * Makanda|| Village|| Jackson||
 * Malden|| Village|| Bureau||
 * Malta|| Village|| DeKalb||
 * Manchester|| Village|| Shelby||
 * Manhattan|| Village|| Will||
 * Manito|| Village|| Mason||
 * Manley|| Unincorporated|| Fulton||
 * Manlius|| Village|| Bureau||
 * Mannon|| Unincorporated|| Mercer||
 * Mansfield|| Village|| Piatt||
 * Manteno|| Village|| Kankakee||
 * Maple Park|| Village|| DeKalb|| (part)
 * Maple Park|| Village|| Kane|| (part)
 * Maples Mill|| Unincorporated|| Fulton||
 * Mapleton|| Village|| Peoria||
 * Maquon|| Village|| Knox||
 * Marblehead|| Unincorporated|| Adams||
 * Marbletown|| Unincorporated|| Fulton||
 * Marcelline|| Unincorporated|| Adams||
 * Marcoe|| Unincorporated|| Jefferson||
 * Mardell Manor|| Unincorporated|| Peoria||
 * Marietta|| Village|| Fulton||
 * Marine|| Village|| Madison||
 * Marissa|| Village|| St. Clair||
 * Mark|| Village|| Putnam||
 * Marlow|| Unincorporated|| Jefferson||
 * Marquette Heights|| Village|| Tazewell||
 * Marston|| Unincorporated|| Mercer||
 * Martin|| Unincorporated|| Crawford||
 * Martinton|| Village|| Iroquois||
 * Maryville|| Village|| Madison||
 * Mason|| Town|| Effingham||
 * Matanzas Beach|| Unincorporated|| Mason||
 * Matherville|| Village|| Mercer||
 * Matteson|| Village|| Cook|| (partly in Will County)
 * Matteson|| Village|| Will|| (part)
 * Maud|| Unincorporated|| Wabash||
 * Maunie|| Village|| White||
 * Maysville|| Unincorporated|| Pike||
 * Maywood|| Village|| Cook||
 * Mazon|| Village|| Grundy||
 * McCall|| Unincorporated|| Hancock||
 * McClure|| Village|| Alexander County, Illinois|Alexander]]||
 * McClusky|| Unincorporated|| Jersey||
 * McConnell|| Unincorporated|| Stephenson||
 * McCook|| Village|| Cook||
 * McCullom Lake|| Village|| McHenry||
 * McLean|| Village|| McLean||
 * McNabb|| Village|| Putnam||
 * McVey|| Unincorporated|| Macoupin||
 * Meadows|| Unincorporated|| McLean||
 * Mechanicsburg|| Village|| Sangamon||
 * Media|| Village|| Henderson||
 * Medinah|| Unincorporated|| DuPage||
 * Medora|| Village|| Macoupin||
 * Melrose Park|| Village|| Cook||
 * Melvin|| Village|| Ford||
 * Menard|| Unincorporated|| Randolph||
 * Menominee|| Village|| Jo Daviess||
 * Meppen|| Unincorporated|| Calhoun||
 * Meredosia|| Village|| Morgan||
 * Mermet|| Unincorporated|| Johnson||
 * Merna|| Unincorporated|| McLean||
 * Merriam|| Unincorporated|| Wayne||
 * Merrimac|| Unincorporated|| Monroe||
 * Merrionette Park|| Village|| Cook||
 * Merritt|| Unincorporated|| Morgan||
 * Metamora|| City|| Woodford||
 * Metcalf|| Village|| Edgar||
 * Mettawa|| Village|| Lake||
 * Meyer|| Unincorporated|| Adams||
 * Michael|| Unincorporated|| Calhoun||
 * Middlegrove|| Unincorporated|| Fulton||
 * Middlesworth|| Unincorporated|| Shelby||
 * Middletown|| Village|| Logan||
 * Midlothian|| Village|| Cook||
 * Milan|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Miles Station|| Unincorporated|| Macoupin||
 * Milford|| Village|| Iroquois||
 * Mill Creek|| Village|| Union||
 * Mill Shoals|| Village|| Wayne||
 * Mill Shoals|| Village|| White||
 * Millbrook|| Village|| Kendall||
 * Millburn|| Unincorporated|| Lake||
 * Milledgeville|| Village|| Carroll||
 * Miller City|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Miller Lake|| Unincorporated|| Jefferson||
 * Millersburg|| Unincorporated|| Mercer||
 * Millersville|| Unincorporated|| Christian||
 * Millington || Village|| LaSalle|| (part)
 * Millington|| Village|| Kendall|| (part)
 * Millstadt|| Village|| St. Clair||
 * Milmine|| Unincorporated|| Piatt||
 * Milton|| Village|| Pike||
 * Mineral|| Village|| Bureau||
 * Minier|| Village|| Tazewell||
 * Minonk|| City|| Woodford||
 * Minooka|| Village|| Grundy||
 * Minooka|| Village|| Kendall|| (part)
 * Minooka|| Village|| Will|| (part)
 * Mitchell|| Unincorporated|| Madison||
 * Mitchellsville|| Unincorporated|| Saline||
 * Mode|| Unincorporated|| Shelby||
 * Modena|| Unincorporated|| Stark||
 * Modesto|| Village|| Macoupin||
 * Modoc|| Unincorporated|| Randolph||
 * Mokena|| Village|| Will||
 * Monaville|| Unincorporated|| Lake||
 * Monee|| Village|| Will||
 * Monroe Center|| Village|| Ogle||
 * Monroe City|| Unincorporated|| Monroe||
 * Monterey|| Unincorporated|| Fulton||
 * Montgomery (part)|| Village|| Kane|| (part)
 * Montgomery|| Unincorporated|| Crawford||
 * Montgomery|| Village|| Kendall|| (part)
 * Montrose || Village|| Cumberland|| (mostly in Effingham County)
 * Montrose|| Village|| Effingham||
 * Mooseheart|| Unincorporated|| Kane||
 * Morrisonville|| Village|| Christian||
 * Morton Grove|| Village|| Cook||
 * Mossville|| Unincorporated|| Peoria||
 * Mound Station|| Village|| Brown||
 * Mount Auburn|| Village|| Christian||
 * Mount Clare|| Village|| Macoupin||
 * Mount Erie|| Village|| Wayne||
 * Mount Fulcher|| Unincorporated|| Logan||
 * Mount Morris|| Village|| Ogle||
 * Mount Palatine|| Unincorporated|| Putnam||
 * Mount Prospect|| Village|| Cook||
 * Mount Zion|| Village|| Macon||
 * Mountjoy|| Unincorporated|| Logan||
 * Moweaqua|| Village|| Christian||
 * Moweaqua|| Village|| Shelby||
 * Mozier|| Unincorporated|| Calhoun||
 * Muddy|| Village|| Saline||
 * Mulberry Grove|| Village|| Bond||
 * Mulkeytown|| Village|| Franklin||
 * Mundelein|| Village|| Lake||
 * Munroe|| Town|| Vermilion||
 * Murrayville|| Village|| Morgan||
 * Myersville|| Town|| Vermilion|| (see Bismarck)
 * Naplate|| Village|| LaSalle||
 * Naples|| Town|| Scott||
 * Narita|| Unincorporated|| Logan||
 * Natrona|| Unincorporated|| Mason||
 * Nebo|| Village|| Pike||
 * Neelys|| Unincorporated|| Schuyler||
 * Nelson|| Village|| Lee||
 * Neponset|| Village|| Bureau||
 * New Athens|| Village|| St. Clair||
 * New Baden (|| Village|| Clinton|| part
 * New Baden|| Village|| St. Clair||
 * New Bedford|| Village|| Bureau||
 * New Berlin|| Village|| Sangamon||
 * New Bremen|| Unincorporated|| Hamilton||
 * New Burnside|| Village|| Johnson||
 * New Canton|| Town|| Pike||
 * New City|| Unincorporated|| Sangamon||
 * New Columbia|| Unincorporated|| Johnson||
 * New Delhi|| Unincorporated|| Jersey||
 * New Douglas|| Village|| Madison||
 * New Hanover|| Unincorporated|| Monroe||
 * New Haven|| Village|| Gallatin||
 * New Holland|| Village|| Logan||
 * New Hope|| Unincorporated|| Saline||
 * New Lenox|| Village|| Will||
 * New Liberty|| Unincorporated|| Massas||
 * New Market|| Unincorporated|| Gallatin||
 * New Milford|| Village|| Winnebago||
 * New Minden|| Village|| Washington||
 * New Salem|| Village|| Pike||
 * Newark|| Village|| Kendall||
 * Newbern|| Unincorporated|| Jersey||
 * Newcastle|| Unincorporated|| Saline||
 * Newmansville|| Village|| Cass||
 * Newport|| Unincorporated|| Madison||
 * Niantic|| Village|| Macon||
 * Niles|| Village|| Cook||
 * Nilwood|| Town|| Macoupin||
 * Niota|| Unincorporated|| Hancock||
 * No. 9|| Unincorporated|| Williamson||
 * Noble|| Village|| Richland||
 * Nora|| Village|| Jo Daviess||
 * Normal|| Town|| McLean||
 * Normandale|| Unincorporated|| Tazewell||
 * Norridge|| Village|| Cook||
 * Norris City|| Village|| White||
 * Norris|| Village|| Fulton||
 * North Aurora|| Village|| Kane||
 * North Barrington|| Village|| Lake||
 * North City|| Village|| Franklin||
 * North Dupo|| Unincorporated|| St. Clair||
 * North Hampton|| Unincorporated|| Peoria||
 * North Henderson|| Village|| Mercer||
 * North Pekin|| Village|| Tazewell||
 * North Quincy|| Unincorporated|| Adams||
 * North Riverside|| Village|| Cook||
 * North Utica|| Village|| LaSalle||
 * Northbrook|| Village|| Cook||
 * Northfield|| Village|| Cook||
 * Nortonville|| Unincorporated|| Morgan||
 * Norway|| Unincorporated|| LaSalle||
 * Norwood|| Village|| Peoria||
 * Nutwood|| Unincorporated|| Jersey||
 * Oak Brook || Village|| DuPage|| (part)
 * Oak Brook|| Village|| Cook|| (partly in DuPage County)
 * Oak Grove|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Oak Hill|| Unincorporated|| Peoria||
 * Oak Lawn|| Village|| Cook||
 * Oak Park|| Village|| Cook||
 * Oak Ridge|| Unincorporated|| Woodford||
 * Oak Run|| Unincorporated|| Knox||
 * Oakdale|| Village|| Washington||
 * Oakford|| Village|| Menard||
 * Oakland|| Village|| Coles||
 * Oakley|| Unincorporated|| Macon||
 * Oakwood Hills|| Village|| McHenry||
 * Oblong|| Unincorporated|| Crawford||
 * Oblong|| Village|| Crawford||
 * Oconee|| Village|| Shelby||
 * Odell|| Village|| Livingston||
 * Odgen|| Unincorporated|| Wabash||
 * Odin|| Village|| Marion||
 * Ogden|| Town|| Champaign||
 * Ohio|| Village|| Bureau||
 * Ohlman|| Village|| Montgomery||
 * Okawville|| Village|| Washington||
 * Old Berlin|| Unincorporated|| Sangamon||
 * Old Kane|| Unincorporated|| Greene||
 * Old Mill Creek|| Village|| Lake||
 * Old Ripley|| Village|| Bond||
 * Old Shawneetown|| Village|| Gallatin||
 * Old Stonington|| Unincorporated|| Christian||
 * Oldtown|| Unincorporated|| Saline||
 * Olena|| Unincorporated|| Henderson||
 * Olga|| Unincorporated|| Hamilton||
 * Olympia Fields|| Village|| Cook||
 * Omaha|| Village|| Gallatin||
 * Onarga|| Village|| Iroquois||
 * Oneco|| Unincorporated|| Stephenson||
 * Ontario|| Unincorporated|| Knox||
 * Opdyke|| Unincorporated|| Jefferson||
 * Oquawka|| Village|| Henderson||
 * Orangeville|| Village|| Stephenson||
 * Orchard Mines|| Unincorporated|| Peoria||
 * Orchardville|| Unincorporated|| Wayne||
 * Oreana|| Village|| Macon||
 * Orion|| Village|| Henry||
 * Orland Hills|| Village|| Cook||
 * Orland Park (partly in Will County)|| Village|| Cook|| (partly in Will County)
 * Orland Park || Village|| Will|| (part)
 * Orleans|| Unincorporated|| Morgan||
 * Ormonde|| Unincorporated|| Warren||
 * Osceola|| Unincorporated|| Stark||
 * Oswego|| Village|| Kendall||
 * Otterville|| Town|| Jersey||
 * Owaneco|| Village|| Christian||
 * Ozark|| Unincorporated|| Johnson||
 * Palatine|| Village|| Cook||
 * Palisades|| Unincorporated|| DuPage||
 * Palm Beach|| Unincorporated|| Lake||
 * Palm Beach|| Unincorporated|| McHenry||
 * Palmer|| Village|| Christian||
 * Palmyra|| Village|| Macoupin||
 * Paloma|| Unincorporated|| Adams||
 * Palos Park|| Village|| Cook||
 * Panama|| Village|| Bond||
 * Panama|| Village|| Montgomery||
 * Pankeyville|| Unincorporated|| Saline||
 * Panola|| Village|| Woodford||
 * Papineau|| Village|| Iroquois||
 * Park Forest || Village|| Cook|| (partly in Will County)
 * Park Forest|| Village|| Will|| (part)
 * Parkersburg|| Village|| Richland||
 * Patoka|| Village|| Marion||
 * Pattonsburg|| Unincorporated|| Marshall||
 * Paulton|| Unincorporated|| Williamson||
 * Paw Paw|| Village|| Lee||
 * Pawnee|| Village|| Sangamon||
 * Pearl City|| Village|| Stephenson||
 * Pearl|| Village|| Pike||
 * Pecatonica|| Village|| Winnebago||
 * Pellsville|| Town|| Vermilion||
 * Pembroke|| Unincorporated|| Kankakee||
 * Peoria Heights|| Village|| Peoria||
 * Peotone|| Village|| Will||
 * Percy|| Village|| Randolph||
 * Perry|| Village|| Pike||
 * Pesotum|| Town|| Champaign||
 * Petersville|| Unincorporated|| Mercer||
 * Petrolia|| Unincorporated|| Lawrence||
 * Pewing|| Unincorporated|| Kankakee||
 * Philadelphia|| Village|| Cass||
 * Phillipstown|| Village|| White||
 * Philo|| Town|| Champaign||
 * Phoenix|| Village|| Cook||
 * Piasa|| Unincorporated|| Macoupin||
 * Pierron|| Village|| Bond||
 * Pierson Station|| Unincorporated|| Piatt||
 * Pike|| Unincorporated|| Pike||
 * Pingree Grove|| Village|| Kane||
 * Pinkstaff|| Unincorporated|| Lawrence||
 * Piopolis|| Unincorporated|| Hamilton||
 * Piper City|| Village|| Ford||
 * Pisgah|| Unincorporated|| Morgan||
 * Pittsburg|| Unincorporated|| Fayette||
 * Pittsburg|| Village|| Williamson||
 * Plainfield|| Village|| Kendall|| (part)
 * Plainfield|| Village|| Will|| (part)
 * Plainview|| Unincorporated|| Macoupin||
 * Plato Center|| Unincorporated|| Kane||
 * Plattville|| Village|| Knox||
 * Pleasant Hill|| Village|| Pike||
 * Pleasant Plains|| Village|| Sangamon||
 * Pleasant View|| Unincorporated|| Schuyler||
 * Plymouth|| Village|| Hancock||
 * Pocahontas|| Village|| Bond||
 * Ponemah|| Unincorporated|| Warren||
 * Pontoon Beach|| Village|| Madison||
 * Pontoosuc|| Village|| Hancock||
 * Poplar City|| Unincorporated|| Mason||
 * Poplar Grove|| Village|| Boone||
 * Port Barrington|| Village|| Lake||
 * Port Barrington|| Village|| McHenry||
 * Port Byron|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Posen|| Unincorporated|| Washington||
 * Posen|| Village|| Cook||
 * Pottstown|| Unincorporated|| Peoria||
 * Poverty Ridge|| Unincorporated|| Fulton||
 * Prairie City|| Village|| McDonough||
 * Prairie du Rocher|| Village|| Randolph||
 * Prairie Grove|| Village|| McHenry||
 * Prairie View|| Unincorporated|| Lake||
 * Prairie|| Unincorporated|| Crawford||
 * Prairietown|| Unincorporated|| Madison||
 * Preemption|| Unincorporated|| Mercer||
 * Prentice|| Unincorporated|| Morgan||
 * Princeville|| Village|| Peoria||
 * Prospect City|| Town|| Vermilion||
 * Pulleys Mill|| Unincorporated|| Johnson||
 * Pulley's Mill|| Unincorporated|| Williamson||
 * Putnam|| Unincorporated|| Putnam||
 * Radford|| Unincorporated|| Christian||
 * Radom|| Village|| Washington||
 * Raeftown|| Unincorporated|| Jasper||
 * Raleigh|| Village|| Saline||
 * Ramsey|| Village|| Fayette||
 * Ransom|| Village|| LaSalle||
 * Rantoul|| Town|| Champaign||
 * Rapatee|| Unincorporated|| Knox||
 * Rapids City|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Raritan|| Village|| Henderson||
 * Rawalts|| Unincorporated|| Fulton||
 * Ray|| Unincorporated|| Schuyler||
 * Raymond|| Village|| Montgomery||
 * Reardon|| Unincorporated|| Jersey||
 * Rectorville|| Unincorporated|| Hamilton||
 * Red Oak|| Unincorporated|| Stephenson||
 * Reddick|| Village|| Kankakee||
 * Reddick|| Village|| Livingston||
 * Reddish|| Unincorporated|| Jersey||
 * Redmon|| Village|| Edgar||
 * Rees|| Unincorporated|| Morgan||
 * Reevesville|| Unincorporated|| Johnson||
 * Reilly || Town|| Vermilion|| (Butler Township)
 * Renault|| Unincorporated|| Monroe||
 * Renchville|| Unincorporated|| Peoria||
 * Rennerville|| Unincorporated|| Shelby||
 * Reynolds || Village|| ]]Rock Island County, Illinois|Rock Island]]|| (part)
 * Reynolds|| Village|| Mercer||
 * Reynoldsburg|| Unincorporated|| Johnson||
 * Reynoldsville|| Unincorporated|| Union||
 * Richfield|| Unincorporated|| Adams||
 * Richmond|| Village|| McHenry||
 * Richton Park|| Village|| Cook||
 * Richview|| Village|| Washington||
 * Riddle Hill|| Unincorporated|| Sangamon||
 * Ridgefield|| Unincorporated|| McHenry||
 * Ridgway|| Village|| Gallatin||
 * Ridott|| Village|| Stephenson||
 * Riggston|| Unincorporated|| Scott||
 * Riley|| Unincorporated|| McHenry||
 * Rinard|| Unincorporated|| Wayne||
 * Ringwood|| Village|| McHenry||
 * Rio|| Village|| Knox||
 * Ripley|| Village|| Brown||
 * Rising Sun|| Unincorporated|| White||
 * River Forest|| Village|| Cook||
 * River Grove|| Village|| Cook||
 * Riverdale|| Village|| Cook||
 * Riverside|| Village|| Cook||
 * Riverton|| Village|| Sangamon||
 * Riverwoods|| Village|| Lake||
 * Roaches|| Unincorporated|| Jefferson||
 * Roanoke|| City|| Woodford||
 * Robbins|| Village|| Cook||
 * Robbs|| Unincorporated|| Johnson||
 * Roberts|| Village|| Ford||
 * Robinson|| Unincorporated|| Crawford||
 * Rochester|| Village|| Sangamon||
 * Rock City|| Village|| Stephenson||
 * Rock Grove|| Unincorporated|| Stephenson||
 * Rockbridge|| Village|| Greene||
 * Rockdale|| Village|| Will||
 * Rockford|| City|| Winnebago||
 * Rockport|| Unincorporated|| Pike||
 * Rockton|| Village|| Winnebago||
 * Rockwood|| Village|| Randolph||
 * Rome Heights|| Unincorporated|| Peoria||
 * Romeoville|| Village|| Will||
 * Rondout|| Unincorporated|| Lake||
 * Rosamond|| Unincorporated|| Christian||
 * Roscoe|| Village|| Winnebago||
 * Rose Hill|| Village|| Jasper||
 * Rosebud|| Unincorporated|| Pope||
 * Rosecrans|| Unincorporated|| Lake||
 * Rosedale|| Unincorporated|| Jersey||
 * Roselle|| Village|| Cook|| (partly in DuPage County)
 * Roselle|| Village|| DuPage|| (part)
 * Rosemont|| Village|| Cook||
 * Roseville|| Village|| Warren||
 * Rosewood Heights|| Unincorporated|| Madison||
 * Rosewood|| Unincorporated|| Madison||
 * Round Knob|| Unincorporated|| Massas||
 * Round Lake Beach|| Village|| Lake||
 * Round Lake Heights|| Village|| Lake||
 * Round Lake Park|| Village|| Lake||
 * Round Lake|| Village|| Lake||
 * Roxana|| Village|| Madison||
 * Royal Lakes|| Village|| Macoupin||
 * Royal|| Town|| Champaign||
 * Royalton|| Village|| Franklin||
 * Rudement|| Unincorporated|| Saline||
 * Ruma|| Village|| Randolph||
 * Russell|| Unincorporated|| Lake||
 * Russellville|| Village|| Lawrence||
 * Russelville|| Unincorporated|| Lawrence||
 * Rutland|| Village|| LaSalle||
 * Sacramento|| Unincorporated|| White||
 * Sadorus|| Town|| Champaign||
 * Saidora|| Unincorporated|| Mason||
 * Sailor Springs|| Village|| Clay||
 * Saline Mines|| Unincorporated|| Gallatin||
 * Saline|| Unincorporated|| Saline||
 * Salisbury|| Unincorporated|| Sangamon||
 * Sammons Point|| Village|| Kankakee||
 * Samoth|| Unincorporated|| Johnson||
 * Samsville|| Unincorporated|| Edwards||
 * San Jose|| Village|| Logan||
 * San Jose|| Village|| Mason||
 * Sand Barrens|| Unincorporated|| Lawrence||
 * Sandoval|| Village|| Marion||
 * Saratoga Center|| Unincorporated|| Marshall||
 * Sauget|| Village|| St. Clair||
 * Sauk Village || Village|| Will|| (part)
 * Sauk Village|| Village|| Cook|| (partly in Will County)
 * Saunemin|| Village|| Livingston||
 * Savoy|| Town|| Champaign||
 * Sawyerville|| Village|| Macoupin||
 * Saxton|| Unincorporated|| Stark||
 * Saybrook|| Village|| McLean||
 * Scales Mound|| Village|| Jo Daviess||
 * Schaeferville|| Unincorporated|| Tazewell||
 * Schaumburg || Village|| Cook|| (partly in DuPage County)
 * Schaumburg|| Village|| DuPage|| (part)
 * Schiller Park|| Village|| Cook||
 * Schram City|| Village|| Montgomery||
 * Schuline|| Unincorporated|| Randolph||
 * Sciota|| Village|| McDonough||
 * Scioto Mills|| Unincorporated|| Stephenson||
 * Scottville|| Village|| Macoupin||
 * Seaton|| Village|| Mercer||
 * Seatonville|| Village|| Bureau||
 * Secor|| Village|| Woodford||
 * Seehorn|| Unincorporated|| Pike||
 * Seneca|| Village|| LaSalle|| (part)
 * Sepo|| Unincorporated|| Fulton||
 * Serena|| Unincorporated|| LaSalle||
 * Seville|| Unincorporated|| Fulton||
 * Seward|| Unincorporated|| Winnebago||
 * Shabbona|| Village|| DeKalb||
 * Shady Grove|| Unincorporated|| Massas||
 * Shafter|| Unincorporated|| Fayette||
 * Shale City|| Unincorporated|| Mercer||
 * Shanghai City|| Unincorporated|| Warren||
 * Shannon|| Village|| Carroll||
 * Sharpsburg|| Unincorporated|| Christian||
 * Sheffield|| Village|| Bureau||
 * Sheldon|| Village|| Iroquois||
 * Sheldons Grove|| Unincorporated|| Schuyler||
 * Shepherd's Town|| Town|| Vermilion||
 * Sheridan|| Village|| LaSalle||
 * Sherman|| Village|| Sangamon||
 * Sherrard|| Village|| Mercer||
 * Shiloh|| Village|| St. Clair||
 * Shipman|| Town|| Macoupin||
 * Shirland|| Unincorporated|| Winnebago||
 * Shirley|| Unincorporated|| McLean||
 * Shobonier|| Unincorporated|| Fayette||
 * Shokonon|| Unincorporated|| Henderson||
 * Shorewood|| Village|| Will||
 * Shumway|| Village|| Effingham||
 * Sibley|| Village|| Ford||
 * Sidney|| Town|| Champaign||
 * Sigel|| Town|| Shelby||
 * Silver Lake|| Unincorporated|| McHenry||
 * Simpson|| Village|| Johnson||
 * Sims|| Village|| Wayne||
 * Sinclair|| Unincorporated|| Morgan||
 * Skelton|| Unincorporated|| Logan||
 * Skokie|| Village|| Cook||
 * Slapout|| Unincorporated|| Hamilton||
 * Sleepy Hollow|| Village|| Kane||
 * Smithboro|| Village|| Bond||
 * Smithfield|| Village|| Fulton||
 * Smithshire|| Unincorporated|| Warren||
 * Smithton|| Village|| St. Clair||
 * Smithville|| Unincorporated|| Peoria||
 * Snicarte|| Unincorporated|| Mason||
 * Sollitt|| Unincorporated|| Kankakee||
 * Solon Mills|| Unincorporated|| McHenry||
 * Somerset|| Unincorporated|| Saline||
 * Somonauk || Village|| LaSalle|| (part)
 * Somonauk|| Village|| DeKalb|| (part)
 * Sorento|| Village|| Bond||
 * South Barrington|| Village|| Cook||
 * South Beloit|| City|| Winnebago||
 * South Chicago Heights|| Village|| Cook||
 * South Elgin|| Village|| Kane||
 * South Holland|| Village|| Cook||
 * South Jacksonville|| Village|| Morgan||
 * South Pekin|| Village|| Tazewell||
 * South Rome|| Unincorporated|| Peoria||
 * South Roxana|| Village|| Madison||
 * South Standard|| Unincorporated|| Macoupin||
 * South Wilmington|| Village|| Grundy||
 * Southern View|| Village|| Sangamon||
 * Southport|| Unincorporated|| Peoria||
 * Southwest|| Unincorporated|| Crawford||
 * Spankey|| Unincorporated|| Jersey||
 * Sparland|| Village|| Marshall||
 * Spaulding|| Village|| Sangamon||
 * Speer|| Unincorporated|| Stark||
 * Spillertown|| Village|| Williamson||
 * Spires|| Unincorporated|| Woodford||
 * Spring Bay|| Village|| Woodford||
 * Spring Grove|| Village|| McHenry||
 * Springerton|| Village|| White||
 * St. Anne|| Village|| Kankakee||
 * St. Augustine|| Village|| Knox||
 * St. David|| Village|| Fulton||
 * St. Jacob|| Village|| Madison||
 * St. Joe|| Unincorporated|| Monroe||
 * St. Johns|| Village|| Perry||
 * St. Joseph|| Town|| Champaign||
 * St. Libory|| Village|| St. Clair||
 * St. Morgan|| Unincorporated|| Madison||
 * St. Paul|| Unincorporated|| Fayette||
 * St. Peter|| Village|| Fayette||
 * St. Rose|| Village|| Clinton||
 * Standard City|| Village|| Macoupin||
 * Standard|| Village|| Randolph||
 * Stanford|| Village|| McLean||
 * Stark|| Unincorporated|| Stark||
 * Starks, Illinois|| Unincorporated|| Kane||
 * State Park Place|| Unincorporated|| Madison||
 * State Park Place|| Unincorporated|| St. Clair||
 * Ste. Marie|| Village|| Jasper||
 * Steeleville|| Village|| Randolph||
 * Steger|| Village|| Cook|| (partly in Will County)
 * Steger|| Village|| Will|| (part)
 * Stelle|| Unincorporated|| Ford||
 * Steward|| Village|| Lee||
 * Stewardson|| Village|| Shelby||
 * Stickney|| Village|| Cook||
 * Stillman Valley|| Village|| Ogle||
 * Stillwell|| Unincorporated|| Hancock||
 * Stockland|| Village|| Iroquois||
 * Stockton|| Village|| Jo Daviess||
 * Stone Park|| Village|| Cook||
 * Stonefort|| Village|| Saline||
 * Stonefort|| Village|| Williamson||
 * Stonington|| Village|| Christian||
 * Stoy|| Village|| Crawford||
 * Strasburg|| Village|| Shelby||
 * Straut|| Unincorporated|| Pike||
 * Strawn|| Village|| Livingston||
 * Streamwood|| Village|| Cook||
 * Stronghurst|| Village|| Henderson||
 * Sublette|| Village|| Lee||
 * Sugar Grove|| Village|| Kane||
 * Summer Hill|| Unincorporated|| Pike||
 * Summerfield|| Village|| St. Clair||
 * Summersville|| Unincorporated|| Jefferson||
 * Summerville|| Unincorporated|| Macoupin||
 * Summit|| Village|| Cook||
 * Summum|| Unincorporated|| Fulton||
 * Sun River Terrace|| Village|| Kankakee||
 * Sunbeam|| Unincorporated|| Mercer||
 * Sutter|| Unincorporated|| Hancock||
 * Swan Creek|| Unincorporated|| Warren||
 * Swansea|| Village|| St. Clair||
 * Swanwick|| Unincorporated|| Perry||
 * Swedona|| Unincorporated|| Mercer||
 * Sweet Water|| Unincorporated|| Menard||
 * Swift|| Unincorporated|| DuPage||
 * Sylvan Lake|| Unincorporated|| Lake||
 * Symerton|| Village|| Will||
 * Table Grove|| Village|| Fulton||
 * Tallula|| Village|| Menard||
 * Tamaroa|| Village|| Perry||
 * Tamms|| Village|| Alexander County, Illinois|Alexander]]||
 * Tampico|| Village|| Whiteside||
 * Taylor Ridge|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Taylor Springs|| Village|| Montgomery||
 * Teheran|| Unincorporated|| Mason||
 * Temple Hill|| Unincorporated|| Pope||
 * Tennessee|| Village|| McDonough||
 * Terre Haute|| Unincorporated|| Henderson||
 * Teutopolis|| Village|| Effingham||
 * Texas City|| Unincorporated|| Saline||
 * Texico|| Unincorporated|| Jefferson||
 * Thackeray|| Unincorporated|| Hamilton||
 * Thayer|| Village|| Sangamon||
 * Thebes|| Village|| Alexander County, Illinois|Alexander]]||
 * Third Lake|| Village|| Lake||
 * Thomasboro|| Town|| Champaign||
 * Thompsonville|| Village|| Franklin||
 * Thomson|| Village|| Carroll||
 * Thornton|| Village|| Cook||
 * Thurber|| Unincorporated|| Hamilton||
 * Tice|| Unincorporated|| Menard||
 * Tilden|| Village|| Richland||
 * Timberlane|| Village|| Boone||
 * Time|| Village|| Pike||
 * Tinley Park || Village|| Cook|| (partly in Will County)
 * Tinley Park|| Village|| Will|| (part)
 * Tipton|| Unincorporated|| Monroe||
 * Tiskilwa|| Village|| Bureau||
 * Tison|| Unincorporated|| Saline||
 * Toledo|| Village|| Cumberland||
 * Tolono|| Town|| Champaign||
 * Tonica|| Village|| LaSalle||
 * Topeka|| Town|| Mason||
 * Toronto|| Unincorporated|| Sangamon||
 * Tovey|| Village|| Christian||
 * Towanda|| Village|| McLean||
 * Tower Hill|| Village|| Shelby||
 * Tower Lakes|| Village|| Lake||
 * Tremont|| Village|| Tazewell||
 * Triumph|| Unincorporated|| LaSalle||
 * Trivoli|| Unincorporated|| Peoria||
 * Trout Valley|| Village|| McHenry||
 * Troy Grove|| Village|| LaSalle||
 * Tucker's Corner|| Unincorporated|| Hamilton||
 * Tunnel Hill|| Unincorporated|| Johnson||
 * Tuscarora|| Unincorporated|| Peoria||
 * Union Hill|| Village|| Kendall||
 * Union|| Unincorporated|| Logan||
 * Union|| Unincorporated|| Mason||
 * Union|| Village|| McHenry||
 * Unionville|| Unincorporated|| Massas||
 * Unity|| Unincorporated|| Piatt|| Former places
 * University Park|| Village|| Cook|| (partly in Will County)
 * University Park|| Village|| Will|| (part)
 * Urbandale|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Utah|| Unincorporated|| Warren||
 * Valier|| Village|| Franklin||
 * Valley City|| Village|| Pike||
 * Valmeyer|| Village|| Monroe||
 * Van Burensburg|| Unincorporated|| Montgomery||
 * Varna|| Village|| Marshall||
 * Venedy|| Village|| Washington||
 * Vera|| Unincorporated|| Fayette||
 * Vergennes|| Village|| Jackson||
 * Vermilion|| Village|| Edgar||
 * Vermont|| Village|| Fulton||
 * Vernon Hills|| Village|| Lake||
 * Vernon|| Village|| Marion||
 * Verona|| Village|| Grundy||
 * Versailles|| Village|| Brown||
 * Vets Row|| Unincorporated|| Peoria||
 * Victoria|| Village|| Knox||
 * Villa Park|| Village|| DuPage||
 * Viola|| Village|| Mercer||
 * Virgil|| Village|| Kane||
 * Volo|| Village|| Lake||
 * Vonachen Knolls|| Unincorporated|| Peoria||
 * Voorhies|| Unincorporated|| Piatt|| Former places
 * Waddams Grove|| Unincorporated|| Stephenson||
 * Wadsworth|| Village|| Lake||
 * Waggoner|| Village|| Montgomery||
 * Walla Walla|| Village|| Cumberland||
 * Walnut Hill|| Village|| Marion||
 * Walnut|| Village|| Bureau||
 * Walpole|| Unincorporated|| Hamilton||
 * Walsh|| Unincorporated|| Randolph||
 * Walshville|| Village|| Montgomery||
 * Waltonville|| Village|| Jefferson||
 * Wanlock|| Unincorporated|| Mercer||
 * Wapella|| Village|| Dewitt||
 * Ware|| Unincorporated|| Union||
 * Warren|| Village|| Jo Daviess||
 * Warrensburg|| Village|| Macon||
 * Wartburg|| Unincorporated|| Monroe||
 * Wartrace|| Unincorporated|| Johnson||
 * Wasco|| Unincorporated|| Kane||
 * Washburn|| City|| Woodford||
 * Washburn|| Village|| Marshall||
 * Washington Park|| Village|| Stark||
 * Wasson|| Unincorporated|| Saline||
 * Wataga|| Village|| Knox||
 * Waterman|| Village|| DeKalb||
 * Watkins Grove|| Town|| Vermilion|| (sometimes called Watkins Glen)
 * Watkins|| Unincorporated|| McLean||
 * Watson|| Village|| Effingham||
 * Wauconda|| Village|| Lake||
 * Wayne (part)|| Village|| Kane||
 * Wayne || Village|| DuPage|| (part)
 * Wayne City|| Village|| Wayne||
 * Waynesville|| Village|| Dewitt||
 * Weaver City || Town|| Vermilion|| (see Ambia, Indiana)
 * Webster|| Unincorporated|| Hancock||
 * Weedman|| Unincorporated|| McLean||
 * Weldon|| Village|| Dewitt||
 * Welge|| Unincorporated|| Randolph||
 * Wenonah|| Village|| Montgomery||
 * West Brooklyn|| Village|| Lee||
 * West City|| Village|| Franklin||
 * West Dundee|| Village|| Kankakee||
 * West End|| Unincorporated|| Saline||
 * West Hallock|| Unincorporated|| Peoria||
 * West Jersey|| Unincorporated|| Stark||
 * West Liberty|| Unincorporated|| Jasper||
 * West Miltmore|| Unincorporated|| Lake||
 * West Point|| Village|| Hancock||
 * West Salem|| Village|| Edwards||
 * West Union|| Unincorporated|| Clark||
 * Westchester|| Village|| Cook||
 * Western Springs|| Village|| Cook||
 * Westervelt|| Unincorporated|| Shelby||
 * Westfield|| Village|| Clark||
 * Westmont|| Village|| DuPage||
 * Weston|| Unincorporated|| McLean||
 * Westport|| Unincorporated|| Lawrence||
 * Westview|| Unincorporated|| St. Clair||
 * Wetaug|| Unincorporated|| Union||
 * Wheeler|| Village|| Jasper||
 * Wheeling || Village|| Cook|| (partly in Lake County)
 * Wheeling|| Village|| Lake||
 * White City|| Village|| Macoupin||
 * White Heath|| Unincorporated|| Piatt||
 * Whiteash|| Village|| Winnebago||
 * Wilbern|| Unincorporated|| Marshall||
 * Wildwood|| Unincorporated|| Lake||
 * Willey Station|| Unincorporated|| Christian||
 * Williamsfield|| Village|| Knox||
 * Williamson|| Village|| Madison||
 * Williamsville|| Village|| Sangamon||
 * Willisville|| Village|| Piatt||
 * Willow Branch|| Unincorporated|| Piatt|| Former places
 * Willow Hill|| Village|| Jasper||
 * Willow Springs|| Village|| Cook|| (partly in DuPage County)
 * Willowbrook|| Village|| DuPage||
 * Wilmette|| Village|| Cook||
 * Wilmington|| Village|| Greene||
 * Wilsonville|| Village|| Macoupin||
 * Windsor|| Village|| Mercer||
 * Wine Hill|| Unincorporated|| Randolph||
 * Winfield|| Village|| DuPage||
 * Winkle|| Unincorporated|| Perry||
 * Winnebago|| Village|| Winnebago||
 * Winneshiek|| Unincorporated|| Stephenson||
 * Winnetka|| Village|| Cook||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Lakewood|| Unincorporated|| DuPage||
 * Lakewood|| Unincorporated|| Shelby||
 * Lakewood|| Village|| McHenry||
 * Lamb|| Unincorporated|| Hardin||
 * Lamotte|| Unincorporated|| Crawford||
 * Lancaster|| Unincorporated|| Wabash||
 * Langleyville|| Unincorporated|| Christian||
 * Lansing|| Village|| Cook||
 * Larchland|| Unincorporated|| Warren||
 * Latham|| Village|| Logan||
 * Latona|| Unincorporated|| Jasper||
 * Laura|| Unincorporated|| Peoria||
 * Lawler|| Unincorporated|| Gallatin||
 * Lawn Ridge|| Unincorporated|| Marshall||
 * Lawn Ridge|| Unincorporated|| Peoria||
 * Lawndale|| Unincorporated|| Logan||
 * Lawrence|| Unincorporated|| McHenry||
 * Layton|| Unincorporated|| Schuyler||
 * Leaf River|| Village|| Ogle||
 * Leamington|| Unincorporated|| Gallatin||
 * Ledford|| Unincorporated|| Saline||
 * Lee|| Village|| DeKalb||
 * Lee|| Village|| Lee||
 * Leeds|| Unincorporated|| Marshall||
 * Leesburg|| Unincorporated|| Fulton||
 * Leland|| Village|| LaSalle||
 * Lemont || Village|| Cook|| (partly in DuPage County and Will County)
 * Lemont || Village|| Will|| (part)
 * Lemont|| Village|| DuPage|| (part)
 * Lena|| Village|| Stephenson||
 * Lenzburg|| Village|| St. Clair||
 * Leonore|| Village|| LaSalle||
 * Lerna|| Village|| Coles||
 * Liberty|| Unincorporated|| Saline||
 * Liberty|| Village|| Adams||
 * Libertyville|| Village|| Lake||
 * Lick Creek|| Unincorporated|| Johnson||
 * Licking|| Unincorporated|| Crawford||
 * Lily Lake|| Village|| Kane||
 * Limestone|| Village|| Kankakee||
 * Lincolnshire|| Village|| Lake||
 * Lincolnwood|| Village|| Cook||
 * Lindenhurst|| Village|| Lake||
 * Lis|| Unincorporated|| Jasper||
 * Lisbon|| Village|| Kendall||
 * Lisle|| Village|| DuPage||
 * Literberry|| Unincorporated|| Morgan||
 * Little America|| Unincorporated|| Fulton||
 * Little Rock|| Unincorporated|| Kendall||
 * Little York|| Village|| Warren||
 * Littleton|| Village|| Schuyler||
 * Lively Grove|| Unincorporated|| Washington||
 * Liverpool|| Village|| Fulton||
 * Livingston|| Village|| Madison||
 * Loami|| Village|| Sangamon||
 * Lockhaven|| Unincorporated|| Jersey||
 * Loda|| Village|| Iroquois||
 * Lodge|| Unincorporated|| Piatt||
 * Logansport, IL|| Unincorporated|| Hamilton||
 * Lomax|| Village|| Henderson||
 * Lombard|| Village|| DuPage||
 * Lombardville|| Unincorporated|| Stark||
 * London Mills|| Village|| Fulton||
 * London Mills|| Village|| Knox|| (mostly in Fulton County)
 * Long Branch|| Unincorporated|| Saline||
 * Long Creek|| Village|| Macon||
 * Long Grove|| Village|| Lake||
 * Long Point|| Village|| Livingston||
 * Longview|| Town|| Champaign||
 * Loogootee|| Unincorporated|| Fayette||
 * Loon Lake|| Unincorporated|| Lake||
 * Loran|| Unincorporated|| Stephenson||
 * Lostant|| Village|| LaSalle||
 * Louisville|| Village|| Clay||
 * Lovilla|| Unincorporated|| Hamilton||
 * Lovington|| Village|| Moultrie||
 * Lowder|| Unincorporated|| Sangamon||
 * Lowpoint|| Unincorporated|| Woodford||
 * Lucas|| Unincorporated|| Logan||
 * Ludlow|| Town|| Champaign||
 * Lumaghi Heights|| Unincorporated|| Madison||
 * Lusk's Ferry|| Unincorporated|| Pope||
 * Lyndon|| Village|| Whiteside||
 * Lynnville|| Village|| Morgan||
 * Lynwood|| Village|| Cook||
 * Lyons|| Village|| Cook||
 * Lyttleville|| Unincorporated|| McLean||
 * Macedonia|| Village|| Franklin||
 * Macedonia|| Village|| Hamilton|| (partly in Franklin County)
 * Machesney Park|| Village|| Winnebago||
 * Mackinaw|| Village|| Tazewell||
 * Madonnaville|| Unincorporated|| Monroe||
 * Maeystown|| Village|| Monroe||
 * Magnolia|| Village|| Putnam||
 * Mahomet|| Town|| Champaign||
 * Makanda|| Village|| Jackson||
 * Malden|| Village|| Bureau||
 * Malta|| Village|| DeKalb||
 * Manchester|| Village|| Shelby||
 * Manhattan|| Village|| Will||
 * Manito|| Village|| Mason||
 * Manley|| Unincorporated|| Fulton||
 * Manlius|| Village|| Bureau||
 * Mannon|| Unincorporated|| Mercer||
 * Mansfield|| Village|| Piatt||
 * Manteno|| Village|| Kankakee||
 * Maple Park|| Village|| DeKalb|| (part)
 * Maple Park|| Village|| Kane|| (part)
 * Maples Mill|| Unincorporated|| Fulton||
 * Mapleton|| Village|| Peoria||
 * Maquon|| Village|| Knox||
 * Marblehead|| Unincorporated|| Adams||
 * Marbletown|| Unincorporated|| Fulton||
 * Marcelline|| Unincorporated|| Adams||
 * Marcoe|| Unincorporated|| Jefferson||
 * Mardell Manor|| Unincorporated|| Peoria||
 * Marietta|| Village|| Fulton||
 * Marine|| Village|| Madison||
 * Marissa|| Village|| St. Clair||
 * Mark|| Village|| Putnam||
 * Marlow|| Unincorporated|| Jefferson||
 * Marquette Heights|| Village|| Tazewell||
 * Marston|| Unincorporated|| Mercer||
 * Martin|| Unincorporated|| Crawford||
 * Martinton|| Village|| Iroquois||
 * Maryville|| Village|| Madison||
 * Mason|| Town|| Effingham||
 * Matanzas Beach|| Unincorporated|| Mason||
 * Matherville|| Village|| Mercer||
 * Matteson|| Village|| Cook|| (partly in Will County)
 * Matteson|| Village|| Will|| (part)
 * Maud|| Unincorporated|| Wabash||
 * Maunie|| Village|| White||
 * Maysville|| Unincorporated|| Pike||
 * Maywood|| Village|| Cook||
 * Mazon|| Village|| Grundy||
 * McCall|| Unincorporated|| Hancock||
 * McClure|| Village|| Alexander County, Illinois|Alexander]]||
 * McClusky|| Unincorporated|| Jersey||
 * McConnell|| Unincorporated|| Stephenson||
 * McCook|| Village|| Cook||
 * McCullom Lake|| Village|| McHenry||
 * McLean|| Village|| McLean||
 * McNabb|| Village|| Putnam||
 * McVey|| Unincorporated|| Macoupin||
 * Meadows|| Unincorporated|| McLean||
 * Mechanicsburg|| Village|| Sangamon||
 * Media|| Village|| Henderson||
 * Medinah|| Unincorporated|| DuPage||
 * Medora|| Village|| Macoupin||
 * Melrose Park|| Village|| Cook||
 * Melvin|| Village|| Ford||
 * Menard|| Unincorporated|| Randolph||
 * Menominee|| Village|| Jo Daviess||
 * Meppen|| Unincorporated|| Calhoun||
 * Meredosia|| Village|| Morgan||
 * Mermet|| Unincorporated|| Johnson||
 * Merna|| Unincorporated|| McLean||
 * Merriam|| Unincorporated|| Wayne||
 * Merrimac|| Unincorporated|| Monroe||
 * Merrionette Park|| Village|| Cook||
 * Merritt|| Unincorporated|| Morgan||
 * Metamora|| City|| Woodford||
 * Metcalf|| Village|| Edgar||
 * Mettawa|| Village|| Lake||
 * Meyer|| Unincorporated|| Adams||
 * Michael|| Unincorporated|| Calhoun||
 * Middlegrove|| Unincorporated|| Fulton||
 * Middlesworth|| Unincorporated|| Shelby||
 * Middletown|| Village|| Logan||
 * Midlothian|| Village|| Cook||
 * Milan|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Miles Station|| Unincorporated|| Macoupin||
 * Milford|| Village|| Iroquois||
 * Mill Creek|| Village|| Union||
 * Mill Shoals|| Village|| Wayne||
 * Mill Shoals|| Village|| White||
 * Millbrook|| Village|| Kendall||
 * Millburn|| Unincorporated|| Lake||
 * Milledgeville|| Village|| Carroll||
 * Miller City|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Miller Lake|| Unincorporated|| Jefferson||
 * Millersburg|| Unincorporated|| Mercer||
 * Millersville|| Unincorporated|| Christian||
 * Millington || Village|| LaSalle|| (part)
 * Millington|| Village|| Kendall|| (part)
 * Millstadt|| Village|| St. Clair||
 * Milmine|| Unincorporated|| Piatt||
 * Milton|| Village|| Pike||
 * Mineral|| Village|| Bureau||
 * Minier|| Village|| Tazewell||
 * Minonk|| City|| Woodford||
 * Minooka|| Village|| Grundy||
 * Minooka|| Village|| Kendall|| (part)
 * Minooka|| Village|| Will|| (part)
 * Mitchell|| Unincorporated|| Madison||
 * Mitchellsville|| Unincorporated|| Saline||
 * Mode|| Unincorporated|| Shelby||
 * Modena|| Unincorporated|| Stark||
 * Modesto|| Village|| Macoupin||
 * Modoc|| Unincorporated|| Randolph||
 * Mokena|| Village|| Will||
 * Monaville|| Unincorporated|| Lake||
 * Monee|| Village|| Will||
 * Monroe Center|| Village|| Ogle||
 * Monroe City|| Unincorporated|| Monroe||
 * Monterey|| Unincorporated|| Fulton||
 * Montgomery (part)|| Village|| Kane|| (part)
 * Montgomery|| Unincorporated|| Crawford||
 * Montgomery|| Village|| Kendall|| (part)
 * Montrose || Village|| Cumberland|| (mostly in Effingham County)
 * Montrose|| Village|| Effingham||
 * Mooseheart|| Unincorporated|| Kane||
 * Morrisonville|| Village|| Christian||
 * Morton Grove|| Village|| Cook||
 * Mossville|| Unincorporated|| Peoria||
 * Mound Station|| Village|| Brown||
 * Mount Auburn|| Village|| Christian||
 * Mount Clare|| Village|| Macoupin||
 * Mount Erie|| Village|| Wayne||
 * Mount Fulcher|| Unincorporated|| Logan||
 * Mount Morris|| Village|| Ogle||
 * Mount Palatine|| Unincorporated|| Putnam||
 * Mount Prospect|| Village|| Cook||
 * Mount Zion|| Village|| Macon||
 * Mountjoy|| Unincorporated|| Logan||
 * Moweaqua|| Village|| Christian||
 * Moweaqua|| Village|| Shelby||
 * Mozier|| Unincorporated|| Calhoun||
 * Muddy|| Village|| Saline||
 * Mulberry Grove|| Village|| Bond||
 * Mulkeytown|| Village|| Franklin||
 * Mundelein|| Village|| Lake||
 * Munroe|| Town|| Vermilion||
 * Murrayville|| Village|| Morgan||
 * Myersville|| Town|| Vermilion|| (see Bismarck)
 * Naplate|| Village|| LaSalle||
 * Naples|| Town|| Scott||
 * Narita|| Unincorporated|| Logan||
 * Natrona|| Unincorporated|| Mason||
 * Nebo|| Village|| Pike||
 * Neelys|| Unincorporated|| Schuyler||
 * Nelson|| Village|| Lee||
 * Neponset|| Village|| Bureau||
 * New Athens|| Village|| St. Clair||
 * New Baden (|| Village|| Clinton|| part
 * New Baden|| Village|| St. Clair||
 * New Bedford|| Village|| Bureau||
 * New Berlin|| Village|| Sangamon||
 * New Bremen|| Unincorporated|| Hamilton||
 * New Burnside|| Village|| Johnson||
 * New Canton|| Town|| Pike||
 * New City|| Unincorporated|| Sangamon||
 * New Columbia|| Unincorporated|| Johnson||
 * New Delhi|| Unincorporated|| Jersey||
 * New Douglas|| Village|| Madison||
 * New Hanover|| Unincorporated|| Monroe||
 * New Haven|| Village|| Gallatin||
 * New Holland|| Village|| Logan||
 * New Hope|| Unincorporated|| Saline||
 * New Lenox|| Village|| Will||
 * New Liberty|| Unincorporated|| Massas||
 * New Market|| Unincorporated|| Gallatin||
 * New Milford|| Village|| Winnebago||
 * New Minden|| Village|| Washington||
 * New Salem|| Village|| Pike||
 * Newark|| Village|| Kendall||
 * Newbern|| Unincorporated|| Jersey||
 * Newcastle|| Unincorporated|| Saline||
 * Newmansville|| Village|| Cass||
 * Newport|| Unincorporated|| Madison||
 * Niantic|| Village|| Macon||
 * Niles|| Village|| Cook||
 * Nilwood|| Town|| Macoupin||
 * Niota|| Unincorporated|| Hancock||
 * No. 9|| Unincorporated|| Williamson||
 * Noble|| Village|| Richland||
 * Nora|| Village|| Jo Daviess||
 * Normal|| Town|| McLean||
 * Normandale|| Unincorporated|| Tazewell||
 * Norridge|| Village|| Cook||
 * Norris City|| Village|| White||
 * Norris|| Village|| Fulton||
 * North Aurora|| Village|| Kane||
 * North Barrington|| Village|| Lake||
 * North City|| Village|| Franklin||
 * North Dupo|| Unincorporated|| St. Clair||
 * North Hampton|| Unincorporated|| Peoria||
 * North Henderson|| Village|| Mercer||
 * North Pekin|| Village|| Tazewell||
 * North Quincy|| Unincorporated|| Adams||
 * North Riverside|| Village|| Cook||
 * North Utica|| Village|| LaSalle||
 * Northbrook|| Village|| Cook||
 * Northfield|| Village|| Cook||
 * Nortonville|| Unincorporated|| Morgan||
 * Norway|| Unincorporated|| LaSalle||
 * Norwood|| Village|| Peoria||
 * Nutwood|| Unincorporated|| Jersey||
 * Oak Brook || Village|| DuPage|| (part)
 * Oak Brook|| Village|| Cook|| (partly in DuPage County)
 * Oak Grove|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Oak Hill|| Unincorporated|| Peoria||
 * Oak Lawn|| Village|| Cook||
 * Oak Park|| Village|| Cook||
 * Oak Ridge|| Unincorporated|| Woodford||
 * Oak Run|| Unincorporated|| Knox||
 * Oakdale|| Village|| Washington||
 * Oakford|| Village|| Menard||
 * Oakland|| Village|| Coles||
 * Oakley|| Unincorporated|| Macon||
 * Oakwood Hills|| Village|| McHenry||
 * Oblong|| Unincorporated|| Crawford||
 * Oblong|| Village|| Crawford||
 * Oconee|| Village|| Shelby||
 * Odell|| Village|| Livingston||
 * Odgen|| Unincorporated|| Wabash||
 * Odin|| Village|| Marion||
 * Ogden|| Town|| Champaign||
 * Ohio|| Village|| Bureau||
 * Ohlman|| Village|| Montgomery||
 * Okawville|| Village|| Washington||
 * Old Berlin|| Unincorporated|| Sangamon||
 * Old Kane|| Unincorporated|| Greene||
 * Old Mill Creek|| Village|| Lake||
 * Old Ripley|| Village|| Bond||
 * Old Shawneetown|| Village|| Gallatin||
 * Old Stonington|| Unincorporated|| Christian||
 * Oldtown|| Unincorporated|| Saline||
 * Olena|| Unincorporated|| Henderson||
 * Olga|| Unincorporated|| Hamilton||
 * Olympia Fields|| Village|| Cook||
 * Omaha|| Village|| Gallatin||
 * Onarga|| Village|| Iroquois||
 * Oneco|| Unincorporated|| Stephenson||
 * Ontario|| Unincorporated|| Knox||
 * Opdyke|| Unincorporated|| Jefferson||
 * Oquawka|| Village|| Henderson||
 * Orangeville|| Village|| Stephenson||
 * Orchard Mines|| Unincorporated|| Peoria||
 * Orchardville|| Unincorporated|| Wayne||
 * Oreana|| Village|| Macon||
 * Orion|| Village|| Henry||
 * Orland Hills|| Village|| Cook||
 * Orland Park (partly in Will County)|| Village|| Cook|| (partly in Will County)
 * Orland Park || Village|| Will|| (part)
 * Orleans|| Unincorporated|| Morgan||
 * Ormonde|| Unincorporated|| Warren||
 * Osceola|| Unincorporated|| Stark||
 * Oswego|| Village|| Kendall||
 * Otterville|| Town|| Jersey||
 * Owaneco|| Village|| Christian||
 * Ozark|| Unincorporated|| Johnson||
 * Palatine|| Village|| Cook||
 * Palisades|| Unincorporated|| DuPage||
 * Palm Beach|| Unincorporated|| Lake||
 * Palm Beach|| Unincorporated|| McHenry||
 * Palmer|| Village|| Christian||
 * Palmyra|| Village|| Macoupin||
 * Paloma|| Unincorporated|| Adams||
 * Palos Park|| Village|| Cook||
 * Panama|| Village|| Bond||
 * Panama|| Village|| Montgomery||
 * Pankeyville|| Unincorporated|| Saline||
 * Panola|| Village|| Woodford||
 * Papineau|| Village|| Iroquois||
 * Park Forest || Village|| Cook|| (partly in Will County)
 * Park Forest|| Village|| Will|| (part)
 * Parkersburg|| Village|| Richland||
 * Patoka|| Village|| Marion||
 * Pattonsburg|| Unincorporated|| Marshall||
 * Paulton|| Unincorporated|| Williamson||
 * Paw Paw|| Village|| Lee||
 * Pawnee|| Village|| Sangamon||
 * Pearl City|| Village|| Stephenson||
 * Pearl|| Village|| Pike||
 * Pecatonica|| Village|| Winnebago||
 * Pellsville|| Town|| Vermilion||
 * Pembroke|| Unincorporated|| Kankakee||
 * Peoria Heights|| Village|| Peoria||
 * Peotone|| Village|| Will||
 * Percy|| Village|| Randolph||
 * Perry|| Village|| Pike||
 * Pesotum|| Town|| Champaign||
 * Petersville|| Unincorporated|| Mercer||
 * Petrolia|| Unincorporated|| Lawrence||
 * Pewing|| Unincorporated|| Kankakee||
 * Philadelphia|| Village|| Cass||
 * Phillipstown|| Village|| White||
 * Philo|| Town|| Champaign||
 * Phoenix|| Village|| Cook||
 * Piasa|| Unincorporated|| Macoupin||
 * Pierron|| Village|| Bond||
 * Pierson Station|| Unincorporated|| Piatt||
 * Pike|| Unincorporated|| Pike||
 * Pingree Grove|| Village|| Kane||
 * Pinkstaff|| Unincorporated|| Lawrence||
 * Piopolis|| Unincorporated|| Hamilton||
 * Piper City|| Village|| Ford||
 * Pisgah|| Unincorporated|| Morgan||
 * Pittsburg|| Unincorporated|| Fayette||
 * Pittsburg|| Village|| Williamson||
 * Plainfield|| Village|| Kendall|| (part)
 * Plainfield|| Village|| Will|| (part)
 * Plainview|| Unincorporated|| Macoupin||
 * Plato Center|| Unincorporated|| Kane||
 * Plattville|| Village|| Knox||
 * Pleasant Hill|| Village|| Pike||
 * Pleasant Plains|| Village|| Sangamon||
 * Pleasant View|| Unincorporated|| Schuyler||
 * Plymouth|| Village|| Hancock||
 * Pocahontas|| Village|| Bond||
 * Ponemah|| Unincorporated|| Warren||
 * Pontoon Beach|| Village|| Madison||
 * Pontoosuc|| Village|| Hancock||
 * Poplar City|| Unincorporated|| Mason||
 * Poplar Grove|| Village|| Boone||
 * Port Barrington|| Village|| Lake||
 * Port Barrington|| Village|| McHenry||
 * Port Byron|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Posen|| Unincorporated|| Washington||
 * Posen|| Village|| Cook||
 * Pottstown|| Unincorporated|| Peoria||
 * Poverty Ridge|| Unincorporated|| Fulton||
 * Prairie City|| Village|| McDonough||
 * Prairie du Rocher|| Village|| Randolph||
 * Prairie Grove|| Village|| McHenry||
 * Prairie View|| Unincorporated|| Lake||
 * Prairie|| Unincorporated|| Crawford||
 * Prairietown|| Unincorporated|| Madison||
 * Preemption|| Unincorporated|| Mercer||
 * Prentice|| Unincorporated|| Morgan||
 * Princeville|| Village|| Peoria||
 * Prospect City|| Town|| Vermilion||
 * Pulleys Mill|| Unincorporated|| Johnson||
 * Pulley's Mill|| Unincorporated|| Williamson||
 * Putnam|| Unincorporated|| Putnam||
 * Radford|| Unincorporated|| Christian||
 * Radom|| Village|| Washington||
 * Raeftown|| Unincorporated|| Jasper||
 * Raleigh|| Village|| Saline||
 * Ramsey|| Village|| Fayette||
 * Ransom|| Village|| LaSalle||
 * Rantoul|| Town|| Champaign||
 * Rapatee|| Unincorporated|| Knox||
 * Rapids City|| Village|| ]]Rock Island County, Illinois|Rock Island]]||
 * Raritan|| Village|| Henderson||
 * Rawalts|| Unincorporated|| Fulton||
 * Ray|| Unincorporated|| Schuyler||
 * Raymond|| Village|| Montgomery||
 * Reardon|| Unincorporated|| Jersey||
 * Rectorville|| Unincorporated|| Hamilton||
 * Red Oak|| Unincorporated|| Stephenson||
 * Reddick|| Village|| Kankakee||
 * Reddick|| Village|| Livingston||
 * Reddish|| Unincorporated|| Jersey||
 * Redmon|| Village|| Edgar||
 * Rees|| Unincorporated|| Morgan||
 * Reevesville|| Unincorporated|| Johnson||
 * Reilly || Town|| Vermilion|| (Butler Township)
 * Renault|| Unincorporated|| Monroe||
 * Renchville|| Unincorporated|| Peoria||
 * Rennerville|| Unincorporated|| Shelby||
 * Reynolds || Village|| ]]Rock Island County, Illinois|Rock Island]]|| (part)
 * Reynolds|| Village|| Mercer||
 * Reynoldsburg|| Unincorporated|| Johnson||
 * Reynoldsville|| Unincorporated|| Union||
 * Richfield|| Unincorporated|| Adams||
 * Richmond|| Village|| McHenry||
 * Richton Park|| Village|| Cook||
 * Richview|| Village|| Washington||
 * Riddle Hill|| Unincorporated|| Sangamon||
 * Ridgefield|| Unincorporated|| McHenry||
 * Ridgway|| Village|| Gallatin||
 * Ridott|| Village|| Stephenson||
 * Riggston|| Unincorporated|| Scott||
 * Riley|| Unincorporated|| McHenry||
 * Rinard|| Unincorporated|| Wayne||
 * Ringwood|| Village|| McHenry||
 * Rio|| Village|| Knox||
 * Ripley|| Village|| Brown||
 * Rising Sun|| Unincorporated|| White||
 * River Forest|| Village|| Cook||
 * River Grove|| Village|| Cook||
 * Riverdale|| Village|| Cook||
 * Riverside|| Village|| Cook||
 * Riverton|| Village|| Sangamon||
 * Riverwoods|| Village|| Lake||
 * Roaches|| Unincorporated|| Jefferson||
 * Roanoke|| City|| Woodford||
 * Robbins|| Village|| Cook||
 * Robbs|| Unincorporated|| Johnson||
 * Roberts|| Village|| Ford||
 * Robinson|| Unincorporated|| Crawford||
 * Rochester|| Village|| Sangamon||
 * Rock City|| Village|| Stephenson||
 * Rock Grove|| Unincorporated|| Stephenson||
 * Rockbridge|| Village|| Greene||
 * Rockdale|| Village|| Will||
 * Rockford|| City|| Winnebago||
 * Rockport|| Unincorporated|| Pike||
 * Rockton|| Village|| Winnebago||
 * Rockwood|| Village|| Randolph||
 * Rome Heights|| Unincorporated|| Peoria||
 * Romeoville|| Village|| Will||
 * Rondout|| Unincorporated|| Lake||
 * Rosamond|| Unincorporated|| Christian||
 * Roscoe|| Village|| Winnebago||
 * Rose Hill|| Village|| Jasper||
 * Rosebud|| Unincorporated|| Pope||
 * Rosecrans|| Unincorporated|| Lake||
 * Rosedale|| Unincorporated|| Jersey||
 * Roselle|| Village|| Cook|| (partly in DuPage County)
 * Roselle|| Village|| DuPage|| (part)
 * Rosemont|| Village|| Cook||
 * Roseville|| Village|| Warren||
 * Rosewood Heights|| Unincorporated|| Madison||
 * Rosewood|| Unincorporated|| Madison||
 * Round Knob|| Unincorporated|| Massas||
 * Round Lake Beach|| Village|| Lake||
 * Round Lake Heights|| Village|| Lake||
 * Round Lake Park|| Village|| Lake||
 * Round Lake|| Village|| Lake||
 * Roxana|| Village|| Madison||
 * Royal Lakes|| Village|| Macoupin||
 * Royal|| Town|| Champaign||
 * Royalton|| Village|| Franklin||
 * Rudement|| Unincorporated|| Saline||
 * Ruma|| Village|| Randolph||
 * Russell|| Unincorporated|| Lake||
 * Russellville|| Village|| Lawrence||
 * Russelville|| Unincorporated|| Lawrence||
 * Rutland|| Village|| LaSalle||
 * Sacramento|| Unincorporated|| White||
 * Sadorus|| Town|| Champaign||
 * Saidora|| Unincorporated|| Mason||
 * Sailor Springs|| Village|| Clay||
 * Saline Mines|| Unincorporated|| Gallatin||
 * Saline|| Unincorporated|| Saline||
 * Salisbury|| Unincorporated|| Sangamon||
 * Sammons Point|| Village|| Kankakee||
 * Samoth|| Unincorporated|| Johnson||
 * Samsville|| Unincorporated|| Edwards||
 * San Jose|| Village|| Logan||
 * San Jose|| Village|| Mason||
 * Sand Barrens|| Unincorporated|| Lawrence||
 * Sandoval|| Village|| Marion||
 * Saratoga Center|| Unincorporated|| Marshall||
 * Sauget|| Village|| St. Clair||
 * Sauk Village || Village|| Will|| (part)
 * Sauk Village|| Village|| Cook|| (partly in Will County)
 * Saunemin|| Village|| Livingston||
 * Savoy|| Town|| Champaign||
 * Sawyerville|| Village|| Macoupin||
 * Saxton|| Unincorporated|| Stark||
 * Saybrook|| Village|| McLean||
 * Scales Mound|| Village|| Jo Daviess||
 * Schaeferville|| Unincorporated|| Tazewell||
 * Schaumburg || Village|| Cook|| (partly in DuPage County)
 * Schaumburg|| Village|| DuPage|| (part)
 * Schiller Park|| Village|| Cook||
 * Schram City|| Village|| Montgomery||
 * Schuline|| Unincorporated|| Randolph||
 * Sciota|| Village|| McDonough||
 * Scioto Mills|| Unincorporated|| Stephenson||
 * Scottville|| Village|| Macoupin||
 * Seaton|| Village|| Mercer||
 * Seatonville|| Village|| Bureau||
 * Secor|| Village|| Woodford||
 * Seehorn|| Unincorporated|| Pike||
 * Seneca|| Village|| LaSalle|| (part)
 * Sepo|| Unincorporated|| Fulton||
 * Serena|| Unincorporated|| LaSalle||
 * Seville|| Unincorporated|| Fulton||
 * Seward|| Unincorporated|| Winnebago||
 * Shabbona|| Village|| DeKalb||
 * Shady Grove|| Unincorporated|| Massas||
 * Shafter|| Unincorporated|| Fayette||
 * Shale City|| Unincorporated|| Mercer||
 * Shanghai City|| Unincorporated|| Warren||
 * Shannon|| Village|| Carroll||
 * Sharpsburg|| Unincorporated|| Christian||
 * Sheffield|| Village|| Bureau||
 * Sheldon|| Village|| Iroquois||
 * Sheldons Grove|| Unincorporated|| Schuyler||
 * Shepherd's Town|| Town|| Vermilion||
 * Sheridan|| Village|| LaSalle||
 * Sherman|| Village|| Sangamon||
 * Sherrard|| Village|| Mercer||
 * Shiloh|| Village|| St. Clair||
 * Shipman|| Town|| Macoupin||
 * Shirland|| Unincorporated|| Winnebago||
 * Shirley|| Unincorporated|| McLean||
 * Shobonier|| Unincorporated|| Fayette||
 * Shokonon|| Unincorporated|| Henderson||
 * Shorewood|| Village|| Will||
 * Shumway|| Village|| Effingham||
 * Sibley|| Village|| Ford||
 * Sidney|| Town|| Champaign||
 * Sigel|| Town|| Shelby||
 * Silver Lake|| Unincorporated|| McHenry||
 * Simpson|| Village|| Johnson||
 * Sims|| Village|| Wayne||
 * Sinclair|| Unincorporated|| Morgan||
 * Skelton|| Unincorporated|| Logan||
 * Skokie|| Village|| Cook||
 * Slapout|| Unincorporated|| Hamilton||
 * Sleepy Hollow|| Village|| Kane||
 * Smithboro|| Village|| Bond||
 * Smithfield|| Village|| Fulton||
 * Smithshire|| Unincorporated|| Warren||
 * Smithton|| Village|| St. Clair||
 * Smithville|| Unincorporated|| Peoria||
 * Snicarte|| Unincorporated|| Mason||
 * Sollitt|| Unincorporated|| Kankakee||
 * Solon Mills|| Unincorporated|| McHenry||
 * Somerset|| Unincorporated|| Saline||
 * Somonauk || Village|| LaSalle|| (part)
 * Somonauk|| Village|| DeKalb|| (part)
 * Sorento|| Village|| Bond||
 * South Barrington|| Village|| Cook||
 * South Beloit|| City|| Winnebago||
 * South Chicago Heights|| Village|| Cook||
 * South Elgin|| Village|| Kane||
 * South Holland|| Village|| Cook||
 * South Jacksonville|| Village|| Morgan||
 * South Pekin|| Village|| Tazewell||
 * South Rome|| Unincorporated|| Peoria||
 * South Roxana|| Village|| Madison||
 * South Standard|| Unincorporated|| Macoupin||
 * South Wilmington|| Village|| Grundy||
 * Southern View|| Village|| Sangamon||
 * Southport|| Unincorporated|| Peoria||
 * Southwest|| Unincorporated|| Crawford||
 * Spankey|| Unincorporated|| Jersey||
 * Sparland|| Village|| Marshall||
 * Spaulding|| Village|| Sangamon||
 * Speer|| Unincorporated|| Stark||
 * Spillertown|| Village|| Williamson||
 * Spires|| Unincorporated|| Woodford||
 * Spring Bay|| Village|| Woodford||
 * Spring Grove|| Village|| McHenry||
 * Springerton|| Village|| White||
 * St. Anne|| Village|| Kankakee||
 * St. Augustine|| Village|| Knox||
 * St. David|| Village|| Fulton||
 * St. Jacob|| Village|| Madison||
 * St. Joe|| Unincorporated|| Monroe||
 * St. Johns|| Village|| Perry||
 * St. Joseph|| Town|| Champaign||
 * St. Libory|| Village|| St. Clair||
 * St. Morgan|| Unincorporated|| Madison||
 * St. Paul|| Unincorporated|| Fayette||
 * St. Peter|| Village|| Fayette||
 * St. Rose|| Village|| Clinton||
 * Standard City|| Village|| Macoupin||
 * Standard|| Village|| Randolph||
 * Stanford|| Village|| McLean||
 * Stark|| Unincorporated|| Stark||
 * Starks, Illinois|| Unincorporated|| Kane||
 * State Park Place|| Unincorporated|| Madison||
 * State Park Place|| Unincorporated|| St. Clair||
 * Ste. Marie|| Village|| Jasper||
 * Steeleville|| Village|| Randolph||
 * Steger|| Village|| Cook|| (partly in Will County)
 * Steger|| Village|| Will|| (part)
 * Stelle|| Unincorporated|| Ford||
 * Steward|| Village|| Lee||
 * Stewardson|| Village|| Shelby||
 * Stickney|| Village|| Cook||
 * Stillman Valley|| Village|| Ogle||
 * Stillwell|| Unincorporated|| Hancock||
 * Stockland|| Village|| Iroquois||
 * Stockton|| Village|| Jo Daviess||
 * Stone Park|| Village|| Cook||
 * Stonefort|| Village|| Saline||
 * Stonefort|| Village|| Williamson||
 * Stonington|| Village|| Christian||
 * Stoy|| Village|| Crawford||
 * Strasburg|| Village|| Shelby||
 * Straut|| Unincorporated|| Pike||
 * Strawn|| Village|| Livingston||
 * Streamwood|| Village|| Cook||
 * Stronghurst|| Village|| Henderson||
 * Sublette|| Village|| Lee||
 * Sugar Grove|| Village|| Kane||
 * Summer Hill|| Unincorporated|| Pike||
 * Summerfield|| Village|| St. Clair||
 * Summersville|| Unincorporated|| Jefferson||
 * Summerville|| Unincorporated|| Macoupin||
 * Summit|| Village|| Cook||
 * Summum|| Unincorporated|| Fulton||
 * Sun River Terrace|| Village|| Kankakee||
 * Sunbeam|| Unincorporated|| Mercer||
 * Sutter|| Unincorporated|| Hancock||
 * Swan Creek|| Unincorporated|| Warren||
 * Swansea|| Village|| St. Clair||
 * Swanwick|| Unincorporated|| Perry||
 * Swedona|| Unincorporated|| Mercer||
 * Sweet Water|| Unincorporated|| Menard||
 * Swift|| Unincorporated|| DuPage||
 * Sylvan Lake|| Unincorporated|| Lake||
 * Symerton|| Village|| Will||
 * Table Grove|| Village|| Fulton||
 * Tallula|| Village|| Menard||
 * Tamaroa|| Village|| Perry||
 * Tamms|| Village|| Alexander County, Illinois|Alexander]]||
 * Tampico|| Village|| Whiteside||
 * Taylor Ridge|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Taylor Springs|| Village|| Montgomery||
 * Teheran|| Unincorporated|| Mason||
 * Temple Hill|| Unincorporated|| Pope||
 * Tennessee|| Village|| McDonough||
 * Terre Haute|| Unincorporated|| Henderson||
 * Teutopolis|| Village|| Effingham||
 * Texas City|| Unincorporated|| Saline||
 * Texico|| Unincorporated|| Jefferson||
 * Thackeray|| Unincorporated|| Hamilton||
 * Thayer|| Village|| Sangamon||
 * Thebes|| Village|| Alexander County, Illinois|Alexander]]||
 * Third Lake|| Village|| Lake||
 * Thomasboro|| Town|| Champaign||
 * Thompsonville|| Village|| Franklin||
 * Thomson|| Village|| Carroll||
 * Thornton|| Village|| Cook||
 * Thurber|| Unincorporated|| Hamilton||
 * Tice|| Unincorporated|| Menard||
 * Tilden|| Village|| Richland||
 * Timberlane|| Village|| Boone||
 * Time|| Village|| Pike||
 * Tinley Park || Village|| Cook|| (partly in Will County)
 * Tinley Park|| Village|| Will|| (part)
 * Tipton|| Unincorporated|| Monroe||
 * Tiskilwa|| Village|| Bureau||
 * Tison|| Unincorporated|| Saline||
 * Toledo|| Village|| Cumberland||
 * Tolono|| Town|| Champaign||
 * Tonica|| Village|| LaSalle||
 * Topeka|| Town|| Mason||
 * Toronto|| Unincorporated|| Sangamon||
 * Tovey|| Village|| Christian||
 * Towanda|| Village|| McLean||
 * Tower Hill|| Village|| Shelby||
 * Tower Lakes|| Village|| Lake||
 * Tremont|| Village|| Tazewell||
 * Triumph|| Unincorporated|| LaSalle||
 * Trivoli|| Unincorporated|| Peoria||
 * Trout Valley|| Village|| McHenry||
 * Troy Grove|| Village|| LaSalle||
 * Tucker's Corner|| Unincorporated|| Hamilton||
 * Tunnel Hill|| Unincorporated|| Johnson||
 * Tuscarora|| Unincorporated|| Peoria||
 * Union Hill|| Village|| Kendall||
 * Union|| Unincorporated|| Logan||
 * Union|| Unincorporated|| Mason||
 * Union|| Village|| McHenry||
 * Unionville|| Unincorporated|| Massas||
 * Unity|| Unincorporated|| Piatt|| Former places
 * University Park|| Village|| Cook|| (partly in Will County)
 * University Park|| Village|| Will|| (part)
 * Urbandale|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Utah|| Unincorporated|| Warren||
 * Valier|| Village|| Franklin||
 * Valley City|| Village|| Pike||
 * Valmeyer|| Village|| Monroe||
 * Van Burensburg|| Unincorporated|| Montgomery||
 * Varna|| Village|| Marshall||
 * Venedy|| Village|| Washington||
 * Vera|| Unincorporated|| Fayette||
 * Vergennes|| Village|| Jackson||
 * Vermilion|| Village|| Edgar||
 * Vermont|| Village|| Fulton||
 * Vernon Hills|| Village|| Lake||
 * Vernon|| Village|| Marion||
 * Verona|| Village|| Grundy||
 * Versailles|| Village|| Brown||
 * Vets Row|| Unincorporated|| Peoria||
 * Victoria|| Village|| Knox||
 * Villa Park|| Village|| DuPage||
 * Viola|| Village|| Mercer||
 * Virgil|| Village|| Kane||
 * Volo|| Village|| Lake||
 * Vonachen Knolls|| Unincorporated|| Peoria||
 * Voorhies|| Unincorporated|| Piatt|| Former places
 * Waddams Grove|| Unincorporated|| Stephenson||
 * Wadsworth|| Village|| Lake||
 * Waggoner|| Village|| Montgomery||
 * Walla Walla|| Village|| Cumberland||
 * Walnut Hill|| Village|| Marion||
 * Walnut|| Village|| Bureau||
 * Walpole|| Unincorporated|| Hamilton||
 * Walsh|| Unincorporated|| Randolph||
 * Walshville|| Village|| Montgomery||
 * Waltonville|| Village|| Jefferson||
 * Wanlock|| Unincorporated|| Mercer||
 * Wapella|| Village|| Dewitt||
 * Ware|| Unincorporated|| Union||
 * Warren|| Village|| Jo Daviess||
 * Warrensburg|| Village|| Macon||
 * Wartburg|| Unincorporated|| Monroe||
 * Wartrace|| Unincorporated|| Johnson||
 * Wasco|| Unincorporated|| Kane||
 * Washburn|| City|| Woodford||
 * Washburn|| Village|| Marshall||
 * Washington Park|| Village|| Stark||
 * Wasson|| Unincorporated|| Saline||
 * Wataga|| Village|| Knox||
 * Waterman|| Village|| DeKalb||
 * Watkins Grove|| Town|| Vermilion|| (sometimes called Watkins Glen)
 * Watkins|| Unincorporated|| McLean||
 * Watson|| Village|| Effingham||
 * Wauconda|| Village|| Lake||
 * Wayne (part)|| Village|| Kane||
 * Wayne || Village|| DuPage|| (part)
 * Wayne City|| Village|| Wayne||
 * Waynesville|| Village|| Dewitt||
 * Weaver City || Town|| Vermilion|| (see Ambia, Indiana)
 * Webster|| Unincorporated|| Hancock||
 * Weedman|| Unincorporated|| McLean||
 * Weldon|| Village|| Dewitt||
 * Welge|| Unincorporated|| Randolph||
 * Wenonah|| Village|| Montgomery||
 * West Brooklyn|| Village|| Lee||
 * West City|| Village|| Franklin||
 * West Dundee|| Village|| Kankakee||
 * West End|| Unincorporated|| Saline||
 * West Hallock|| Unincorporated|| Peoria||
 * West Jersey|| Unincorporated|| Stark||
 * West Liberty|| Unincorporated|| Jasper||
 * West Miltmore|| Unincorporated|| Lake||
 * West Point|| Village|| Hancock||
 * West Salem|| Village|| Edwards||
 * West Union|| Unincorporated|| Clark||
 * Westchester|| Village|| Cook||
 * Western Springs|| Village|| Cook||
 * Westervelt|| Unincorporated|| Shelby||
 * Westfield|| Village|| Clark||
 * Westmont|| Village|| DuPage||
 * Weston|| Unincorporated|| McLean||
 * Westport|| Unincorporated|| Lawrence||
 * Westview|| Unincorporated|| St. Clair||
 * Wetaug|| Unincorporated|| Union||
 * Wheeler|| Village|| Jasper||
 * Wheeling || Village|| Cook|| (partly in Lake County)
 * Wheeling|| Village|| Lake||
 * White City|| Village|| Macoupin||
 * White Heath|| Unincorporated|| Piatt||
 * Whiteash|| Village|| Winnebago||
 * Wilbern|| Unincorporated|| Marshall||
 * Wildwood|| Unincorporated|| Lake||
 * Willey Station|| Unincorporated|| Christian||
 * Williamsfield|| Village|| Knox||
 * Williamson|| Village|| Madison||
 * Williamsville|| Village|| Sangamon||
 * Willisville|| Village|| Piatt||
 * Willow Branch|| Unincorporated|| Piatt|| Former places
 * Willow Hill|| Village|| Jasper||
 * Willow Springs|| Village|| Cook|| (partly in DuPage County)
 * Willowbrook|| Village|| DuPage||
 * Wilmette|| Village|| Cook||
 * Wilmington|| Village|| Greene||
 * Wilsonville|| Village|| Macoupin||
 * Windsor|| Village|| Mercer||
 * Wine Hill|| Unincorporated|| Randolph||
 * Winfield|| Village|| DuPage||
 * Winkle|| Unincorporated|| Perry||
 * Winnebago|| Village|| Winnebago||
 * Winneshiek|| Unincorporated|| Stephenson||
 * Winnetka|| Village|| Cook||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Ray|| Unincorporated|| Schuyler||
 * Raymond|| Village|| Montgomery||
 * Reardon|| Unincorporated|| Jersey||
 * Rectorville|| Unincorporated|| Hamilton||
 * Red Oak|| Unincorporated|| Stephenson||
 * Reddick|| Village|| Kankakee||
 * Reddick|| Village|| Livingston||
 * Reddish|| Unincorporated|| Jersey||
 * Redmon|| Village|| Edgar||
 * Rees|| Unincorporated|| Morgan||
 * Reevesville|| Unincorporated|| Johnson||
 * Reilly || Town|| Vermilion|| (Butler Township)
 * Renault|| Unincorporated|| Monroe||
 * Renchville|| Unincorporated|| Peoria||
 * Rennerville|| Unincorporated|| Shelby||
 * Reynolds || Village|| ]]Rock Island County, Illinois|Rock Island]]|| (part)
 * Reynolds|| Village|| Mercer||
 * Reynoldsburg|| Unincorporated|| Johnson||
 * Reynoldsville|| Unincorporated|| Union||
 * Richfield|| Unincorporated|| Adams||
 * Richmond|| Village|| McHenry||
 * Richton Park|| Village|| Cook||
 * Richview|| Village|| Washington||
 * Riddle Hill|| Unincorporated|| Sangamon||
 * Ridgefield|| Unincorporated|| McHenry||
 * Ridgway|| Village|| Gallatin||
 * Ridott|| Village|| Stephenson||
 * Riggston|| Unincorporated|| Scott||
 * Riley|| Unincorporated|| McHenry||
 * Rinard|| Unincorporated|| Wayne||
 * Ringwood|| Village|| McHenry||
 * Rio|| Village|| Knox||
 * Ripley|| Village|| Brown||
 * Rising Sun|| Unincorporated|| White||
 * River Forest|| Village|| Cook||
 * River Grove|| Village|| Cook||
 * Riverdale|| Village|| Cook||
 * Riverside|| Village|| Cook||
 * Riverton|| Village|| Sangamon||
 * Riverwoods|| Village|| Lake||
 * Roaches|| Unincorporated|| Jefferson||
 * Roanoke|| City|| Woodford||
 * Robbins|| Village|| Cook||
 * Robbs|| Unincorporated|| Johnson||
 * Roberts|| Village|| Ford||
 * Robinson|| Unincorporated|| Crawford||
 * Rochester|| Village|| Sangamon||
 * Rock City|| Village|| Stephenson||
 * Rock Grove|| Unincorporated|| Stephenson||
 * Rockbridge|| Village|| Greene||
 * Rockdale|| Village|| Will||
 * Rockford|| City|| Winnebago||
 * Rockport|| Unincorporated|| Pike||
 * Rockton|| Village|| Winnebago||
 * Rockwood|| Village|| Randolph||
 * Rome Heights|| Unincorporated|| Peoria||
 * Romeoville|| Village|| Will||
 * Rondout|| Unincorporated|| Lake||
 * Rosamond|| Unincorporated|| Christian||
 * Roscoe|| Village|| Winnebago||
 * Rose Hill|| Village|| Jasper||
 * Rosebud|| Unincorporated|| Pope||
 * Rosecrans|| Unincorporated|| Lake||
 * Rosedale|| Unincorporated|| Jersey||
 * Roselle|| Village|| Cook|| (partly in DuPage County)
 * Roselle|| Village|| DuPage|| (part)
 * Rosemont|| Village|| Cook||
 * Roseville|| Village|| Warren||
 * Rosewood Heights|| Unincorporated|| Madison||
 * Rosewood|| Unincorporated|| Madison||
 * Round Knob|| Unincorporated|| Massas||
 * Round Lake Beach|| Village|| Lake||
 * Round Lake Heights|| Village|| Lake||
 * Round Lake Park|| Village|| Lake||
 * Round Lake|| Village|| Lake||
 * Roxana|| Village|| Madison||
 * Royal Lakes|| Village|| Macoupin||
 * Royal|| Town|| Champaign||
 * Royalton|| Village|| Franklin||
 * Rudement|| Unincorporated|| Saline||
 * Ruma|| Village|| Randolph||
 * Russell|| Unincorporated|| Lake||
 * Russellville|| Village|| Lawrence||
 * Russelville|| Unincorporated|| Lawrence||
 * Rutland|| Village|| LaSalle||
 * Sacramento|| Unincorporated|| White||
 * Sadorus|| Town|| Champaign||
 * Saidora|| Unincorporated|| Mason||
 * Sailor Springs|| Village|| Clay||
 * Saline Mines|| Unincorporated|| Gallatin||
 * Saline|| Unincorporated|| Saline||
 * Salisbury|| Unincorporated|| Sangamon||
 * Sammons Point|| Village|| Kankakee||
 * Samoth|| Unincorporated|| Johnson||
 * Samsville|| Unincorporated|| Edwards||
 * San Jose|| Village|| Logan||
 * San Jose|| Village|| Mason||
 * Sand Barrens|| Unincorporated|| Lawrence||
 * Sandoval|| Village|| Marion||
 * Saratoga Center|| Unincorporated|| Marshall||
 * Sauget|| Village|| St. Clair||
 * Sauk Village || Village|| Will|| (part)
 * Sauk Village|| Village|| Cook|| (partly in Will County)
 * Saunemin|| Village|| Livingston||
 * Savoy|| Town|| Champaign||
 * Sawyerville|| Village|| Macoupin||
 * Saxton|| Unincorporated|| Stark||
 * Saybrook|| Village|| McLean||
 * Scales Mound|| Village|| Jo Daviess||
 * Schaeferville|| Unincorporated|| Tazewell||
 * Schaumburg || Village|| Cook|| (partly in DuPage County)
 * Schaumburg|| Village|| DuPage|| (part)
 * Schiller Park|| Village|| Cook||
 * Schram City|| Village|| Montgomery||
 * Schuline|| Unincorporated|| Randolph||
 * Sciota|| Village|| McDonough||
 * Scioto Mills|| Unincorporated|| Stephenson||
 * Scottville|| Village|| Macoupin||
 * Seaton|| Village|| Mercer||
 * Seatonville|| Village|| Bureau||
 * Secor|| Village|| Woodford||
 * Seehorn|| Unincorporated|| Pike||
 * Seneca|| Village|| LaSalle|| (part)
 * Sepo|| Unincorporated|| Fulton||
 * Serena|| Unincorporated|| LaSalle||
 * Seville|| Unincorporated|| Fulton||
 * Seward|| Unincorporated|| Winnebago||
 * Shabbona|| Village|| DeKalb||
 * Shady Grove|| Unincorporated|| Massas||
 * Shafter|| Unincorporated|| Fayette||
 * Shale City|| Unincorporated|| Mercer||
 * Shanghai City|| Unincorporated|| Warren||
 * Shannon|| Village|| Carroll||
 * Sharpsburg|| Unincorporated|| Christian||
 * Sheffield|| Village|| Bureau||
 * Sheldon|| Village|| Iroquois||
 * Sheldons Grove|| Unincorporated|| Schuyler||
 * Shepherd's Town|| Town|| Vermilion||
 * Sheridan|| Village|| LaSalle||
 * Sherman|| Village|| Sangamon||
 * Sherrard|| Village|| Mercer||
 * Shiloh|| Village|| St. Clair||
 * Shipman|| Town|| Macoupin||
 * Shirland|| Unincorporated|| Winnebago||
 * Shirley|| Unincorporated|| McLean||
 * Shobonier|| Unincorporated|| Fayette||
 * Shokonon|| Unincorporated|| Henderson||
 * Shorewood|| Village|| Will||
 * Shumway|| Village|| Effingham||
 * Sibley|| Village|| Ford||
 * Sidney|| Town|| Champaign||
 * Sigel|| Town|| Shelby||
 * Silver Lake|| Unincorporated|| McHenry||
 * Simpson|| Village|| Johnson||
 * Sims|| Village|| Wayne||
 * Sinclair|| Unincorporated|| Morgan||
 * Skelton|| Unincorporated|| Logan||
 * Skokie|| Village|| Cook||
 * Slapout|| Unincorporated|| Hamilton||
 * Sleepy Hollow|| Village|| Kane||
 * Smithboro|| Village|| Bond||
 * Smithfield|| Village|| Fulton||
 * Smithshire|| Unincorporated|| Warren||
 * Smithton|| Village|| St. Clair||
 * Smithville|| Unincorporated|| Peoria||
 * Snicarte|| Unincorporated|| Mason||
 * Sollitt|| Unincorporated|| Kankakee||
 * Solon Mills|| Unincorporated|| McHenry||
 * Somerset|| Unincorporated|| Saline||
 * Somonauk || Village|| LaSalle|| (part)
 * Somonauk|| Village|| DeKalb|| (part)
 * Sorento|| Village|| Bond||
 * South Barrington|| Village|| Cook||
 * South Beloit|| City|| Winnebago||
 * South Chicago Heights|| Village|| Cook||
 * South Elgin|| Village|| Kane||
 * South Holland|| Village|| Cook||
 * South Jacksonville|| Village|| Morgan||
 * South Pekin|| Village|| Tazewell||
 * South Rome|| Unincorporated|| Peoria||
 * South Roxana|| Village|| Madison||
 * South Standard|| Unincorporated|| Macoupin||
 * South Wilmington|| Village|| Grundy||
 * Southern View|| Village|| Sangamon||
 * Southport|| Unincorporated|| Peoria||
 * Southwest|| Unincorporated|| Crawford||
 * Spankey|| Unincorporated|| Jersey||
 * Sparland|| Village|| Marshall||
 * Spaulding|| Village|| Sangamon||
 * Speer|| Unincorporated|| Stark||
 * Spillertown|| Village|| Williamson||
 * Spires|| Unincorporated|| Woodford||
 * Spring Bay|| Village|| Woodford||
 * Spring Grove|| Village|| McHenry||
 * Springerton|| Village|| White||
 * St. Anne|| Village|| Kankakee||
 * St. Augustine|| Village|| Knox||
 * St. David|| Village|| Fulton||
 * St. Jacob|| Village|| Madison||
 * St. Joe|| Unincorporated|| Monroe||
 * St. Johns|| Village|| Perry||
 * St. Joseph|| Town|| Champaign||
 * St. Libory|| Village|| St. Clair||
 * St. Morgan|| Unincorporated|| Madison||
 * St. Paul|| Unincorporated|| Fayette||
 * St. Peter|| Village|| Fayette||
 * St. Rose|| Village|| Clinton||
 * Standard City|| Village|| Macoupin||
 * Standard|| Village|| Randolph||
 * Stanford|| Village|| McLean||
 * Stark|| Unincorporated|| Stark||
 * Starks, Illinois|| Unincorporated|| Kane||
 * State Park Place|| Unincorporated|| Madison||
 * State Park Place|| Unincorporated|| St. Clair||
 * Ste. Marie|| Village|| Jasper||
 * Steeleville|| Village|| Randolph||
 * Steger|| Village|| Cook|| (partly in Will County)
 * Steger|| Village|| Will|| (part)
 * Stelle|| Unincorporated|| Ford||
 * Steward|| Village|| Lee||
 * Stewardson|| Village|| Shelby||
 * Stickney|| Village|| Cook||
 * Stillman Valley|| Village|| Ogle||
 * Stillwell|| Unincorporated|| Hancock||
 * Stockland|| Village|| Iroquois||
 * Stockton|| Village|| Jo Daviess||
 * Stone Park|| Village|| Cook||
 * Stonefort|| Village|| Saline||
 * Stonefort|| Village|| Williamson||
 * Stonington|| Village|| Christian||
 * Stoy|| Village|| Crawford||
 * Strasburg|| Village|| Shelby||
 * Straut|| Unincorporated|| Pike||
 * Strawn|| Village|| Livingston||
 * Streamwood|| Village|| Cook||
 * Stronghurst|| Village|| Henderson||
 * Sublette|| Village|| Lee||
 * Sugar Grove|| Village|| Kane||
 * Summer Hill|| Unincorporated|| Pike||
 * Summerfield|| Village|| St. Clair||
 * Summersville|| Unincorporated|| Jefferson||
 * Summerville|| Unincorporated|| Macoupin||
 * Summit|| Village|| Cook||
 * Summum|| Unincorporated|| Fulton||
 * Sun River Terrace|| Village|| Kankakee||
 * Sunbeam|| Unincorporated|| Mercer||
 * Sutter|| Unincorporated|| Hancock||
 * Swan Creek|| Unincorporated|| Warren||
 * Swansea|| Village|| St. Clair||
 * Swanwick|| Unincorporated|| Perry||
 * Swedona|| Unincorporated|| Mercer||
 * Sweet Water|| Unincorporated|| Menard||
 * Swift|| Unincorporated|| DuPage||
 * Sylvan Lake|| Unincorporated|| Lake||
 * Symerton|| Village|| Will||
 * Table Grove|| Village|| Fulton||
 * Tallula|| Village|| Menard||
 * Tamaroa|| Village|| Perry||
 * Tamms|| Village|| Alexander County, Illinois|Alexander]]||
 * Tampico|| Village|| Whiteside||
 * Taylor Ridge|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Taylor Springs|| Village|| Montgomery||
 * Teheran|| Unincorporated|| Mason||
 * Temple Hill|| Unincorporated|| Pope||
 * Tennessee|| Village|| McDonough||
 * Terre Haute|| Unincorporated|| Henderson||
 * Teutopolis|| Village|| Effingham||
 * Texas City|| Unincorporated|| Saline||
 * Texico|| Unincorporated|| Jefferson||
 * Thackeray|| Unincorporated|| Hamilton||
 * Thayer|| Village|| Sangamon||
 * Thebes|| Village|| Alexander County, Illinois|Alexander]]||
 * Third Lake|| Village|| Lake||
 * Thomasboro|| Town|| Champaign||
 * Thompsonville|| Village|| Franklin||
 * Thomson|| Village|| Carroll||
 * Thornton|| Village|| Cook||
 * Thurber|| Unincorporated|| Hamilton||
 * Tice|| Unincorporated|| Menard||
 * Tilden|| Village|| Richland||
 * Timberlane|| Village|| Boone||
 * Time|| Village|| Pike||
 * Tinley Park || Village|| Cook|| (partly in Will County)
 * Tinley Park|| Village|| Will|| (part)
 * Tipton|| Unincorporated|| Monroe||
 * Tiskilwa|| Village|| Bureau||
 * Tison|| Unincorporated|| Saline||
 * Toledo|| Village|| Cumberland||
 * Tolono|| Town|| Champaign||
 * Tonica|| Village|| LaSalle||
 * Topeka|| Town|| Mason||
 * Toronto|| Unincorporated|| Sangamon||
 * Tovey|| Village|| Christian||
 * Towanda|| Village|| McLean||
 * Tower Hill|| Village|| Shelby||
 * Tower Lakes|| Village|| Lake||
 * Tremont|| Village|| Tazewell||
 * Triumph|| Unincorporated|| LaSalle||
 * Trivoli|| Unincorporated|| Peoria||
 * Trout Valley|| Village|| McHenry||
 * Troy Grove|| Village|| LaSalle||
 * Tucker's Corner|| Unincorporated|| Hamilton||
 * Tunnel Hill|| Unincorporated|| Johnson||
 * Tuscarora|| Unincorporated|| Peoria||
 * Union Hill|| Village|| Kendall||
 * Union|| Unincorporated|| Logan||
 * Union|| Unincorporated|| Mason||
 * Union|| Village|| McHenry||
 * Unionville|| Unincorporated|| Massas||
 * Unity|| Unincorporated|| Piatt|| Former places
 * University Park|| Village|| Cook|| (partly in Will County)
 * University Park|| Village|| Will|| (part)
 * Urbandale|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Utah|| Unincorporated|| Warren||
 * Valier|| Village|| Franklin||
 * Valley City|| Village|| Pike||
 * Valmeyer|| Village|| Monroe||
 * Van Burensburg|| Unincorporated|| Montgomery||
 * Varna|| Village|| Marshall||
 * Venedy|| Village|| Washington||
 * Vera|| Unincorporated|| Fayette||
 * Vergennes|| Village|| Jackson||
 * Vermilion|| Village|| Edgar||
 * Vermont|| Village|| Fulton||
 * Vernon Hills|| Village|| Lake||
 * Vernon|| Village|| Marion||
 * Verona|| Village|| Grundy||
 * Versailles|| Village|| Brown||
 * Vets Row|| Unincorporated|| Peoria||
 * Victoria|| Village|| Knox||
 * Villa Park|| Village|| DuPage||
 * Viola|| Village|| Mercer||
 * Virgil|| Village|| Kane||
 * Volo|| Village|| Lake||
 * Vonachen Knolls|| Unincorporated|| Peoria||
 * Voorhies|| Unincorporated|| Piatt|| Former places
 * Waddams Grove|| Unincorporated|| Stephenson||
 * Wadsworth|| Village|| Lake||
 * Waggoner|| Village|| Montgomery||
 * Walla Walla|| Village|| Cumberland||
 * Walnut Hill|| Village|| Marion||
 * Walnut|| Village|| Bureau||
 * Walpole|| Unincorporated|| Hamilton||
 * Walsh|| Unincorporated|| Randolph||
 * Walshville|| Village|| Montgomery||
 * Waltonville|| Village|| Jefferson||
 * Wanlock|| Unincorporated|| Mercer||
 * Wapella|| Village|| Dewitt||
 * Ware|| Unincorporated|| Union||
 * Warren|| Village|| Jo Daviess||
 * Warrensburg|| Village|| Macon||
 * Wartburg|| Unincorporated|| Monroe||
 * Wartrace|| Unincorporated|| Johnson||
 * Wasco|| Unincorporated|| Kane||
 * Washburn|| City|| Woodford||
 * Washburn|| Village|| Marshall||
 * Washington Park|| Village|| Stark||
 * Wasson|| Unincorporated|| Saline||
 * Wataga|| Village|| Knox||
 * Waterman|| Village|| DeKalb||
 * Watkins Grove|| Town|| Vermilion|| (sometimes called Watkins Glen)
 * Watkins|| Unincorporated|| McLean||
 * Watson|| Village|| Effingham||
 * Wauconda|| Village|| Lake||
 * Wayne (part)|| Village|| Kane||
 * Wayne || Village|| DuPage|| (part)
 * Wayne City|| Village|| Wayne||
 * Waynesville|| Village|| Dewitt||
 * Weaver City || Town|| Vermilion|| (see Ambia, Indiana)
 * Webster|| Unincorporated|| Hancock||
 * Weedman|| Unincorporated|| McLean||
 * Weldon|| Village|| Dewitt||
 * Welge|| Unincorporated|| Randolph||
 * Wenonah|| Village|| Montgomery||
 * West Brooklyn|| Village|| Lee||
 * West City|| Village|| Franklin||
 * West Dundee|| Village|| Kankakee||
 * West End|| Unincorporated|| Saline||
 * West Hallock|| Unincorporated|| Peoria||
 * West Jersey|| Unincorporated|| Stark||
 * West Liberty|| Unincorporated|| Jasper||
 * West Miltmore|| Unincorporated|| Lake||
 * West Point|| Village|| Hancock||
 * West Salem|| Village|| Edwards||
 * West Union|| Unincorporated|| Clark||
 * Westchester|| Village|| Cook||
 * Western Springs|| Village|| Cook||
 * Westervelt|| Unincorporated|| Shelby||
 * Westfield|| Village|| Clark||
 * Westmont|| Village|| DuPage||
 * Weston|| Unincorporated|| McLean||
 * Westport|| Unincorporated|| Lawrence||
 * Westview|| Unincorporated|| St. Clair||
 * Wetaug|| Unincorporated|| Union||
 * Wheeler|| Village|| Jasper||
 * Wheeling || Village|| Cook|| (partly in Lake County)
 * Wheeling|| Village|| Lake||
 * White City|| Village|| Macoupin||
 * White Heath|| Unincorporated|| Piatt||
 * Whiteash|| Village|| Winnebago||
 * Wilbern|| Unincorporated|| Marshall||
 * Wildwood|| Unincorporated|| Lake||
 * Willey Station|| Unincorporated|| Christian||
 * Williamsfield|| Village|| Knox||
 * Williamson|| Village|| Madison||
 * Williamsville|| Village|| Sangamon||
 * Willisville|| Village|| Piatt||
 * Willow Branch|| Unincorporated|| Piatt|| Former places
 * Willow Hill|| Village|| Jasper||
 * Willow Springs|| Village|| Cook|| (partly in DuPage County)
 * Willowbrook|| Village|| DuPage||
 * Wilmette|| Village|| Cook||
 * Wilmington|| Village|| Greene||
 * Wilsonville|| Village|| Macoupin||
 * Windsor|| Village|| Mercer||
 * Wine Hill|| Unincorporated|| Randolph||
 * Winfield|| Village|| DuPage||
 * Winkle|| Unincorporated|| Perry||
 * Winnebago|| Village|| Winnebago||
 * Winneshiek|| Unincorporated|| Stephenson||
 * Winnetka|| Village|| Cook||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Stockton|| Village|| Jo Daviess||
 * Stone Park|| Village|| Cook||
 * Stonefort|| Village|| Saline||
 * Stonefort|| Village|| Williamson||
 * Stonington|| Village|| Christian||
 * Stoy|| Village|| Crawford||
 * Strasburg|| Village|| Shelby||
 * Straut|| Unincorporated|| Pike||
 * Strawn|| Village|| Livingston||
 * Streamwood|| Village|| Cook||
 * Stronghurst|| Village|| Henderson||
 * Sublette|| Village|| Lee||
 * Sugar Grove|| Village|| Kane||
 * Summer Hill|| Unincorporated|| Pike||
 * Summerfield|| Village|| St. Clair||
 * Summersville|| Unincorporated|| Jefferson||
 * Summerville|| Unincorporated|| Macoupin||
 * Summit|| Village|| Cook||
 * Summum|| Unincorporated|| Fulton||
 * Sun River Terrace|| Village|| Kankakee||
 * Sunbeam|| Unincorporated|| Mercer||
 * Sutter|| Unincorporated|| Hancock||
 * Swan Creek|| Unincorporated|| Warren||
 * Swansea|| Village|| St. Clair||
 * Swanwick|| Unincorporated|| Perry||
 * Swedona|| Unincorporated|| Mercer||
 * Sweet Water|| Unincorporated|| Menard||
 * Swift|| Unincorporated|| DuPage||
 * Sylvan Lake|| Unincorporated|| Lake||
 * Symerton|| Village|| Will||
 * Table Grove|| Village|| Fulton||
 * Tallula|| Village|| Menard||
 * Tamaroa|| Village|| Perry||
 * Tamms|| Village|| Alexander County, Illinois|Alexander]]||
 * Tampico|| Village|| Whiteside||
 * Taylor Ridge|| Unincorporated|| ]]Rock Island County, Illinois|Rock Island]]||
 * Taylor Springs|| Village|| Montgomery||
 * Teheran|| Unincorporated|| Mason||
 * Temple Hill|| Unincorporated|| Pope||
 * Tennessee|| Village|| McDonough||
 * Terre Haute|| Unincorporated|| Henderson||
 * Teutopolis|| Village|| Effingham||
 * Texas City|| Unincorporated|| Saline||
 * Texico|| Unincorporated|| Jefferson||
 * Thackeray|| Unincorporated|| Hamilton||
 * Thayer|| Village|| Sangamon||
 * Thebes|| Village|| Alexander County, Illinois|Alexander]]||
 * Third Lake|| Village|| Lake||
 * Thomasboro|| Town|| Champaign||
 * Thompsonville|| Village|| Franklin||
 * Thomson|| Village|| Carroll||
 * Thornton|| Village|| Cook||
 * Thurber|| Unincorporated|| Hamilton||
 * Tice|| Unincorporated|| Menard||
 * Tilden|| Village|| Richland||
 * Timberlane|| Village|| Boone||
 * Time|| Village|| Pike||
 * Tinley Park || Village|| Cook|| (partly in Will County)
 * Tinley Park|| Village|| Will|| (part)
 * Tipton|| Unincorporated|| Monroe||
 * Tiskilwa|| Village|| Bureau||
 * Tison|| Unincorporated|| Saline||
 * Toledo|| Village|| Cumberland||
 * Tolono|| Town|| Champaign||
 * Tonica|| Village|| LaSalle||
 * Topeka|| Town|| Mason||
 * Toronto|| Unincorporated|| Sangamon||
 * Tovey|| Village|| Christian||
 * Towanda|| Village|| McLean||
 * Tower Hill|| Village|| Shelby||
 * Tower Lakes|| Village|| Lake||
 * Tremont|| Village|| Tazewell||
 * Triumph|| Unincorporated|| LaSalle||
 * Trivoli|| Unincorporated|| Peoria||
 * Trout Valley|| Village|| McHenry||
 * Troy Grove|| Village|| LaSalle||
 * Tucker's Corner|| Unincorporated|| Hamilton||
 * Tunnel Hill|| Unincorporated|| Johnson||
 * Tuscarora|| Unincorporated|| Peoria||
 * Union Hill|| Village|| Kendall||
 * Union|| Unincorporated|| Logan||
 * Union|| Unincorporated|| Mason||
 * Union|| Village|| McHenry||
 * Unionville|| Unincorporated|| Massas||
 * Unity|| Unincorporated|| Piatt|| Former places
 * University Park|| Village|| Cook|| (partly in Will County)
 * University Park|| Village|| Will|| (part)
 * Urbandale|| Unincorporated|| Alexander County, Illinois|Alexander]]||
 * Utah|| Unincorporated|| Warren||
 * Valier|| Village|| Franklin||
 * Valley City|| Village|| Pike||
 * Valmeyer|| Village|| Monroe||
 * Van Burensburg|| Unincorporated|| Montgomery||
 * Varna|| Village|| Marshall||
 * Venedy|| Village|| Washington||
 * Vera|| Unincorporated|| Fayette||
 * Vergennes|| Village|| Jackson||
 * Vermilion|| Village|| Edgar||
 * Vermont|| Village|| Fulton||
 * Vernon Hills|| Village|| Lake||
 * Vernon|| Village|| Marion||
 * Verona|| Village|| Grundy||
 * Versailles|| Village|| Brown||
 * Vets Row|| Unincorporated|| Peoria||
 * Victoria|| Village|| Knox||
 * Villa Park|| Village|| DuPage||
 * Viola|| Village|| Mercer||
 * Virgil|| Village|| Kane||
 * Volo|| Village|| Lake||
 * Vonachen Knolls|| Unincorporated|| Peoria||
 * Voorhies|| Unincorporated|| Piatt|| Former places
 * Waddams Grove|| Unincorporated|| Stephenson||
 * Wadsworth|| Village|| Lake||
 * Waggoner|| Village|| Montgomery||
 * Walla Walla|| Village|| Cumberland||
 * Walnut Hill|| Village|| Marion||
 * Walnut|| Village|| Bureau||
 * Walpole|| Unincorporated|| Hamilton||
 * Walsh|| Unincorporated|| Randolph||
 * Walshville|| Village|| Montgomery||
 * Waltonville|| Village|| Jefferson||
 * Wanlock|| Unincorporated|| Mercer||
 * Wapella|| Village|| Dewitt||
 * Ware|| Unincorporated|| Union||
 * Warren|| Village|| Jo Daviess||
 * Warrensburg|| Village|| Macon||
 * Wartburg|| Unincorporated|| Monroe||
 * Wartrace|| Unincorporated|| Johnson||
 * Wasco|| Unincorporated|| Kane||
 * Washburn|| City|| Woodford||
 * Washburn|| Village|| Marshall||
 * Washington Park|| Village|| Stark||
 * Wasson|| Unincorporated|| Saline||
 * Wataga|| Village|| Knox||
 * Waterman|| Village|| DeKalb||
 * Watkins Grove|| Town|| Vermilion|| (sometimes called Watkins Glen)
 * Watkins|| Unincorporated|| McLean||
 * Watson|| Village|| Effingham||
 * Wauconda|| Village|| Lake||
 * Wayne (part)|| Village|| Kane||
 * Wayne || Village|| DuPage|| (part)
 * Wayne City|| Village|| Wayne||
 * Waynesville|| Village|| Dewitt||
 * Weaver City || Town|| Vermilion|| (see Ambia, Indiana)
 * Webster|| Unincorporated|| Hancock||
 * Weedman|| Unincorporated|| McLean||
 * Weldon|| Village|| Dewitt||
 * Welge|| Unincorporated|| Randolph||
 * Wenonah|| Village|| Montgomery||
 * West Brooklyn|| Village|| Lee||
 * West City|| Village|| Franklin||
 * West Dundee|| Village|| Kankakee||
 * West End|| Unincorporated|| Saline||
 * West Hallock|| Unincorporated|| Peoria||
 * West Jersey|| Unincorporated|| Stark||
 * West Liberty|| Unincorporated|| Jasper||
 * West Miltmore|| Unincorporated|| Lake||
 * West Point|| Village|| Hancock||
 * West Salem|| Village|| Edwards||
 * West Union|| Unincorporated|| Clark||
 * Westchester|| Village|| Cook||
 * Western Springs|| Village|| Cook||
 * Westervelt|| Unincorporated|| Shelby||
 * Westfield|| Village|| Clark||
 * Westmont|| Village|| DuPage||
 * Weston|| Unincorporated|| McLean||
 * Westport|| Unincorporated|| Lawrence||
 * Westview|| Unincorporated|| St. Clair||
 * Wetaug|| Unincorporated|| Union||
 * Wheeler|| Village|| Jasper||
 * Wheeling || Village|| Cook|| (partly in Lake County)
 * Wheeling|| Village|| Lake||
 * White City|| Village|| Macoupin||
 * White Heath|| Unincorporated|| Piatt||
 * Whiteash|| Village|| Winnebago||
 * Wilbern|| Unincorporated|| Marshall||
 * Wildwood|| Unincorporated|| Lake||
 * Willey Station|| Unincorporated|| Christian||
 * Williamsfield|| Village|| Knox||
 * Williamson|| Village|| Madison||
 * Williamsville|| Village|| Sangamon||
 * Willisville|| Village|| Piatt||
 * Willow Branch|| Unincorporated|| Piatt|| Former places
 * Willow Hill|| Village|| Jasper||
 * Willow Springs|| Village|| Cook|| (partly in DuPage County)
 * Willowbrook|| Village|| DuPage||
 * Wilmette|| Village|| Cook||
 * Wilmington|| Village|| Greene||
 * Wilsonville|| Village|| Macoupin||
 * Windsor|| Village|| Mercer||
 * Wine Hill|| Unincorporated|| Randolph||
 * Winfield|| Village|| DuPage||
 * Winkle|| Unincorporated|| Perry||
 * Winnebago|| Village|| Winnebago||
 * Winneshiek|| Unincorporated|| Stephenson||
 * Winnetka|| Village|| Cook||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Wadsworth|| Village|| Lake||
 * Waggoner|| Village|| Montgomery||
 * Walla Walla|| Village|| Cumberland||
 * Walnut Hill|| Village|| Marion||
 * Walnut|| Village|| Bureau||
 * Walpole|| Unincorporated|| Hamilton||
 * Walsh|| Unincorporated|| Randolph||
 * Walshville|| Village|| Montgomery||
 * Waltonville|| Village|| Jefferson||
 * Wanlock|| Unincorporated|| Mercer||
 * Wapella|| Village|| Dewitt||
 * Ware|| Unincorporated|| Union||
 * Warren|| Village|| Jo Daviess||
 * Warrensburg|| Village|| Macon||
 * Wartburg|| Unincorporated|| Monroe||
 * Wartrace|| Unincorporated|| Johnson||
 * Wasco|| Unincorporated|| Kane||
 * Washburn|| City|| Woodford||
 * Washburn|| Village|| Marshall||
 * Washington Park|| Village|| Stark||
 * Wasson|| Unincorporated|| Saline||
 * Wataga|| Village|| Knox||
 * Waterman|| Village|| DeKalb||
 * Watkins Grove|| Town|| Vermilion|| (sometimes called Watkins Glen)
 * Watkins|| Unincorporated|| McLean||
 * Watson|| Village|| Effingham||
 * Wauconda|| Village|| Lake||
 * Wayne (part)|| Village|| Kane||
 * Wayne || Village|| DuPage|| (part)
 * Wayne City|| Village|| Wayne||
 * Waynesville|| Village|| Dewitt||
 * Weaver City || Town|| Vermilion|| (see Ambia, Indiana)
 * Webster|| Unincorporated|| Hancock||
 * Weedman|| Unincorporated|| McLean||
 * Weldon|| Village|| Dewitt||
 * Welge|| Unincorporated|| Randolph||
 * Wenonah|| Village|| Montgomery||
 * West Brooklyn|| Village|| Lee||
 * West City|| Village|| Franklin||
 * West Dundee|| Village|| Kankakee||
 * West End|| Unincorporated|| Saline||
 * West Hallock|| Unincorporated|| Peoria||
 * West Jersey|| Unincorporated|| Stark||
 * West Liberty|| Unincorporated|| Jasper||
 * West Miltmore|| Unincorporated|| Lake||
 * West Point|| Village|| Hancock||
 * West Salem|| Village|| Edwards||
 * West Union|| Unincorporated|| Clark||
 * Westchester|| Village|| Cook||
 * Western Springs|| Village|| Cook||
 * Westervelt|| Unincorporated|| Shelby||
 * Westfield|| Village|| Clark||
 * Westmont|| Village|| DuPage||
 * Weston|| Unincorporated|| McLean||
 * Westport|| Unincorporated|| Lawrence||
 * Westview|| Unincorporated|| St. Clair||
 * Wetaug|| Unincorporated|| Union||
 * Wheeler|| Village|| Jasper||
 * Wheeling || Village|| Cook|| (partly in Lake County)
 * Wheeling|| Village|| Lake||
 * White City|| Village|| Macoupin||
 * White Heath|| Unincorporated|| Piatt||
 * Whiteash|| Village|| Winnebago||
 * Wilbern|| Unincorporated|| Marshall||
 * Wildwood|| Unincorporated|| Lake||
 * Willey Station|| Unincorporated|| Christian||
 * Williamsfield|| Village|| Knox||
 * Williamson|| Village|| Madison||
 * Williamsville|| Village|| Sangamon||
 * Willisville|| Village|| Piatt||
 * Willow Branch|| Unincorporated|| Piatt|| Former places
 * Willow Hill|| Village|| Jasper||
 * Willow Springs|| Village|| Cook|| (partly in DuPage County)
 * Willowbrook|| Village|| DuPage||
 * Wilmette|| Village|| Cook||
 * Wilmington|| Village|| Greene||
 * Wilsonville|| Village|| Macoupin||
 * Windsor|| Village|| Mercer||
 * Wine Hill|| Unincorporated|| Randolph||
 * Winfield|| Village|| DuPage||
 * Winkle|| Unincorporated|| Perry||
 * Winnebago|| Village|| Winnebago||
 * Winneshiek|| Unincorporated|| Stephenson||
 * Winnetka|| Village|| Cook||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Wetaug|| Unincorporated|| Union||
 * Wheeler|| Village|| Jasper||
 * Wheeling || Village|| Cook|| (partly in Lake County)
 * Wheeling|| Village|| Lake||
 * White City|| Village|| Macoupin||
 * White Heath|| Unincorporated|| Piatt||
 * Whiteash|| Village|| Winnebago||
 * Wilbern|| Unincorporated|| Marshall||
 * Wildwood|| Unincorporated|| Lake||
 * Willey Station|| Unincorporated|| Christian||
 * Williamsfield|| Village|| Knox||
 * Williamson|| Village|| Madison||
 * Williamsville|| Village|| Sangamon||
 * Willisville|| Village|| Piatt||
 * Willow Branch|| Unincorporated|| Piatt|| Former places
 * Willow Hill|| Village|| Jasper||
 * Willow Springs|| Village|| Cook|| (partly in DuPage County)
 * Willowbrook|| Village|| DuPage||
 * Wilmette|| Village|| Cook||
 * Wilmington|| Village|| Greene||
 * Wilsonville|| Village|| Macoupin||
 * Windsor|| Village|| Mercer||
 * Wine Hill|| Unincorporated|| Randolph||
 * Winfield|| Village|| DuPage||
 * Winkle|| Unincorporated|| Perry||
 * Winnebago|| Village|| Winnebago||
 * Winneshiek|| Unincorporated|| Stephenson||
 * Winnetka|| Village|| Cook||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Winslow|| Village|| Stephenson||
 * Winthrop Harbor|| Village|| LaSalle||
 * Wolf Lake|| Unincorporated|| Union||
 * Womac|| Unincorporated|| Macoupin||
 * Wonder Lake|| Village|| McLean||
 * Woodburn|| Unincorporated|| Macoupin||
 * Woodford|| Unincorporated|| Woodford||
 * Woodhull|| Village|| Henry||
 * Woodlawn|| Village|| Jefferson||
 * Woodridge|| Village|| Cook|| (partly in DuPage County and Will County)
 * Woodridge|| Village|| DuPage|| (part)
 * Woodridge|| Village|| Williamson|| (part)
 * Woodson|| Village|| Morgan||
 * Wooster Lake|| Unincorporated|| Lake||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Worden|| Village|| Madison||
 * Worth|| Village|| Cook||
 * Wyanet|| Village|| Bureau||
 * Wynoose|| Unincorporated|| Richland||
 * Xenia|| Village|| Clay||
 * Yale|| Village|| Jasper||
 * Yantisville|| Unincorporated|| Shelby||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Yates City|| Village|| Knox||
 * Yeager|| Unincorporated|| Kankakee||
 * York Center|| Unincorporated|| DuPage||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Youngstown|| Unincorporated|| Warren||
 * Zanesville|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Zenobia|| Unincorporated|| Montgomery||
 * Zenobia|| Unincorporated|| Sangamon||
 * Zenobia|| Unincorporated|| Sangamon||


 * ]