Introduction - New York State Census Records|
The U.S. Federal Census is taken every ten years, beginning with 1790. This guide is for New York City and State censuses taken between the federal census years or made separately from the federal census. (For information on Federal Census Records for New York (and other states) see... US Census Records 1790-1940.)
New York State censuses are available for some counties for 1825, 1835, 1845 and 1855, and for most counties for 1865, 1875, 1892, 1905, 1915 and 1925. The 1915 and 1925 New York State Censuses are fairly complete.
New York State Census Records Online at Ancestry
Ancestry has these databases for New York state census records. All 4 are included with a subscription to their online genealogy records collection.
New York County (Manhattan) is missing from most New York State censuses. However, it is included in the 1855, 1905 (includes the Bronx), 1915 and 1925 state censuses. Also, a nearly complete Manhattan census (the "police census") exists for 1890...