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About the US Census
The United States Constitution includes directives for carrying out a census of the population every 10 years. Over the past 200 years that charge has expanded and changed to include other census types. In addition, state and local governments create and manage statistics.
History of the US Census Bureau
Social Explorer is an online research tool designed to access current and historical U.S. Census data and demographic information. It contains maps, profile reports, data elements, and variables.
Statistical Abstract of the United States
The Statistical Abstract of the United States, published since 1878, is the authoritative and comprehensive summary of statistics on the social, political, and economic organization of the United States.