The U.S. federal census is taken every ten years, and provides information about members of households. The most recent census that is accessible to the public is the 1940 census. The information provided on the census varies from decade to decade, but usually includes the names of the members of the household, their ages, places of birth, and occupation. The censuses are arranged geographically by state, county, city, enumeration district, and address.
The federal census is available most completely in the subscription database Ancestry.com. (The St. Louis Public Library and the St. Louis County Library are among the libraries that subscribe to Ancestry, allowing their patrons to access the database for free.)
The Missouri History Museum Library holds the federal census for St. Louis City and County (on microfilm) for the years 1830, 1840, 1850, 1860, 1870, 1880, 1900, 1910, 1920, and 1930. (The population schedule of the 1890 federal census burned in a fire and is not available for St. Louis.)
For instructions on locating a street address in the federal census, click on the links below.
1940 federal census
1930 federal census
1920 federal census
1910 federal census
1900 federal census
1890 federal census of Civil War veterans and their widows
1880 federal census (The 1880 census is the first census in which the households are identified with a specific street address.)