Onondaga County, New York Genealogy

United States &gt; New York &gt; Onondaga County

County Courthouse
Office of the County Clerk Room 200 County Court House 401 Montgomery Street Syracuse, New York 13202

The office is open Monday through Friday 8:00 a.m. to 5:00 p.m.

Quick History
Wikipedia

Parent County
5 March 1794: Created from Herkimer County.

Boundary Changes
8 March 1799: Cayuga County set off.

8 April 1808: Cortland County set off.

1 March 1816: Oswego County set off.

Populated Places
Syracuse, Manlius, Lysander, Tully, Baldwinsville, more ....

Neighboring Counties
Cayuga | Cortland | Madison | Oswego

Census Records
1820 United States Census: The American Pomeroy Historic Genealogical Association (APHGA) found that the 1820 census was incorrectly microfilmed, with several pages out of sequence for Onondaga County. Both the Ancestry and Heritage Quest indices placed household from Manilus in neighboring Cicero. Corrected indices are free of charge from APHGA and are posted online.

Web Sites

 * The Onondaga County NYGenWeb Project, a member of The NYGenWeb Project, an affiliate of The USGenWeb Project.
 * The USGenWeb Archives Project for Onondaga County.
 * The USGenWeb Archives Project for Onondaga County. (Backup site)
 * FamilySearch.org Family History Library catalog for Onondaga County