State Census Collections on Ancestry.com

Ancestry.com has a number of state censuses online. As of November 2009, some state censuses are available for the following states:

> Alabama State Censuses (1820-1866) 
> California Spanish Mission Censuses (1796-1798) 
> Colorado State Census (1885)
> Florida State Censuses (1867-1945)
> Illinois State Censuses (1825-65)
> Iowa State Censuses (1836-1925)
> Kansas State Censuses (1855-1925)
> Minnesota State Censuses (1849-1905)
> Mississippi State and Territorial Censuses, 1792-1866)
> Missouri State Censuses (1844-81)
> Nebraska State Census (Various years and county coverage; see the database description for details.)
> New Jersey State Census (1895)
> New York State Censuses (1880-1905, partial coverage)
> North Dakota State Censuses (1915-25)
> Oklahoma Territorial Census (1890 and 1907) 
> South Dakota Territorial Census (1885) 
> South Dakota State Census (1895) 
> Washington State Censuses (1857-1892)
> Wisconsin State Censuses (1895-1905)

(Note: Not all of these states have complete coverage at this time. Search the card catalog for additional partial collections and indexes to state censuses.)