New Horizons Genealogy

"Specializing in New England and New York Colonial American Ancestry"


Oswego County New York Census Records

Oswego County was Formed in 1816 from Oneida and Onondaga Counties, County Seat - Oswego, Pulaski.


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Oswego County, New York Census Information:

The Oswego County, New York Federal Census Records was completed for the following years: 1820, 1830, 1840, 1850, 1860, 1870, 1880, 1890, 1900, 1910, 1920, 1930 and 1940.

The 1890 Oswego County, New York Federal Census Records were destroyed in a fire. The The 1890 Veterans and Widows census records schedules for Oswego County, New York did survive the fire and are available for genealogical research. The 1850, 1860, 1870, and 1880 Federal Census Records also includes mortality schedules in the census which records the deaths for the year, and were completed for the years 1850, 1860, 1870, 1880.

The Oswego County, New York State Census was completed for the following years: 1825 (all partial), 1835, 1845, 1855, 1865, 1875, 1892, 1905, 1915, and 1925. The original records for the State's pre-1915 census are kept at the county level. You may contact the county clerk's office to ascertain their availability and location. Original manuscripts of the 1915 and 1925 census records are maintained by the State Archives. The 1865 and 1875 New York State Census also includes mortality schedules in the census which records the marriages and deaths for the year.

Oswego County, New York State Census Substitutes:

Oswego County, New York Tax Valuation Lists are one of the most valuable, and most often neglected sources of genealogical information and prove to be a great census substitute. They usually divulge the names of heads of households and other males aged 16 or over and can be used to prove parentage when no other records are available. Tax lists place individuals in a particular place at a particular time and indicate the type and amount of property owned.


Oswego County Federal Census Records:

1820 Oswego County, N.Y. Federal Census Records

1850 Oswego County, N.Y. Federal Census Records


Oswego County State Census Records:

1855 Oswego County State Census Records:

1865 Oswego County State Census Records:

1875 Oswego County State Census Records:

1892 Oswego County State Census Records:

1905 Oswego County State Census Records:

1925 Oswego County State Census Records: