Beginning in 1790, the United States has conducted one national census every ten years. In an effort to provide detailed information more frequently, beginning in 2005, the Census Bureau also began conducting the nationwide American Community Survey (ACS) to collect data on a broad range of subjects on a regular basis. For more information about the ACS see the Population Research Libguide.
Social Explorer is the most user-friendly database for historical U.S. census information and contains interactive maps and census data reports from 1790 to the present.
Other sources of historical U.S. census information include:
U.S. Census Published Volumes - PDF versions of published U.S. Census publications. 1790-2010. Available via IPUMS.
Decennial Census of Population and Housing by Decades follows the evolution of the decennial census by detailing the events surrounding each of them.
Historical Statistics of the United States. Millennial ed. Carter, S. B. New York: Cambridge University Press, 2006. Wide range of historical data. Tables cover specific indicators such as employment, income, saving, poverty, construction, housing, consumer price indexes, and others.
Population Information in Nineteenth Century Census Volumes Shulze, S. Phoenix, AZ : Oryx Press, 1983. Identifies the population information in the U.S. Census decennial reports from 1790 to 1890. Describes the contents and unique aspects of each census.
Population Information in Twentieth Century Census Volumes: 1900-1940 Shulze, S. Phoenix, AZ : Oryx Press, 1985
Population Information in Twentieth Century Census Volumes: 1950-1980 Shulze, S. Phoenix, AZ : Oryx Press, 1988
Bibliography and Reel Index: A Guide to the Microfilm Ed. of the U.S. Decennial Census Publications, 1790-1970 Woodbridge, Conn. : Research Publications, 1975. Serves as a bibliography of U.S. Decennial Census Publications for 1790-1970 and as a reel index for the microform collection. Includes statistics on race, nationality, sex, occupations, and education.
Censuses of U.S. Native Americans – U.S. Census Bureau history of the census counts of American Indians as defined by the U.S. government.
For detailed historical census information (including individual census records) see the Historical U.S. Census and Vital Records guide.