Visit Oswego County


Oswego GeneologyThousands of families settled in Oswego County to pursue agriculture, lumbering, commerce and other opportunities. Genealogists and researchers are encouraged to contact the numerous historical societies and historians for cemetery information and historic documents as they trace their family history.

Oswego County Records Center
Historians & Historical Societies
RootsWeb – Oswego County Geneological & Historical Resource Site
War of 1812 Soldier List


Oswego County Records Center
Justin White, County Historian
384 East River Road
Oswego, New York  13126
Office Hours: Monday – Friday by appointment only. Please call ahead to schedule your visit.

The Oswego County Records Center contains several archival records pertaining to the  history of Oswego County. Due to the large amount of requests and correspondence received through this office, researchers are asked to fill out the research form before a search is initiated.  Researchers who are able to come to the records center in person may research free of charge.

The following documents are available:

Census Records
Oswego County Censuses are available for the following years:

  • 1820, 1850, 1855, 1860, 1865, 1870, 1875, 1880, 1892, 1905, 1915 & 1925

Naturalization Records
Oswego County Naturalizations are available beginning in 1829.  The records from 1829 to 1906 contain only minimal information.  After 1906 the complete naturalization records are available up until 1955.

Cemetery Records
A compilation of over 170 cemeteries in Oswego County is available for search.

City Directories – Oswego and Fulton
Oswego Directories (1869 – Present) & Fulton Directories (1903 – Present).

Marriage License Records – 1908 to 1935 only
Marriage Licenses are available from 1908 – 1935 only.  These are the only copies of vital records that the Oswego County government was mandated to keep.

Miscellaneous Records
These records include various published histories related to Oswego County, family histories, County Historian correspondence file, maps, etc.