United States Resident Population

     Welcome to the resident population and apportionment site for Census 2000. The nation’s resident population on Census Day, April 1, 2000 was 281,421,906, a 13.2 percent increase over the 248,709,873 counted in the 1990 census.
     Census 2000 results are available for the resident population of the 50 states, District of Columbia and Puerto Rico; congressional apportionment; and U.S. overseas population, consisting of federal employees (military and civilian) overseas and their dependents living with them.
     The associated tables and maps can be viewed by clicking on the links within the ‘Census 2000 Results.’ More detailed information from Census 2000 will be available beginning with the release of Public Law 94-171 data (redistricting data summary file) in March 2001 and continuing on a flow basis through 2003.
     The historical timeline shown above illustrates how America’s population has changed dramatically from when the first decennial census was coordinated by Thomas Jefferson in 1790. Select a state from the scroll down menu on the right to see the historical census charts containing resident population and congressional representation from the nation’s twenty-two decennial censuses.