Copies of the 1820 census lists are available on 35 millimeter microfilm from: Census Microfilm Expeditors or the National Archives.   Series: M33 Rolls: 1 - 142.

1820 Facts

    1. Fourth U.S. decennial population census.
    2. U.S. population: 9.6 million
        (8.1 million free, 1.5 million slave)
    3. Census conducted by U.S. marshals under the
        direction of the Secretary of State.
    4. Census day: 1st Monday in August (7 August 1820).
    5. Mandated copies: One set, sent to the federal district
        court. Same copy ordered sent to the
        U.S. Secretary of State in 1830.