Middlesex County, New Jersey Genealogy

United States &gt; New Jersey &gt; Middlesex County

Parent County
1675, original part of East Jersey; 1688, part taken for Somerset County; 1710, some boundary changes; 1714, part of Somerset County taken back; 1790, some boundary changes with Somerset County; 1822, water boundary established; 1838, West Windsor and part of East Windsor twps. to Mercer County; 1844, part of Monroe twp. to Monmouth County; 1844, part of Monroe twp. to Monmouth County and returned in 1845; 1847, piece of Monroe twp. to Monmouth County; 1850, part of Franklin twp. of Somerset County to North Brunswick twp.; water boundary clarified; 1855, some changes to boundary with Somerset County and again in 1858; 1860, part of Woodbridge twp. to Rahway, Union County; 1871, boundary with Plainfield, Union County changed; 1878, boundary at Kingston, Somerset County clarified; 1892, water boundary further clarified; 1939, land to Matawan, Monmouth County.

Web Sites

 * USGenWeb project. May have maps, name indexes, history or other information for this county. Select the state, then the county.
 * Family History Library Catalog