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2020 Post-Enumeration Survey (PES) Results for the 50 states and District of Columbia to be released May 19. Learn more.

Decennial Census of Population and Housing by Decades

Although the U.S. Census Bureau carries out hundreds of surveys every year, its most well-known duty is still to conduct the decennial census. Census results have several high profile applications: they are used to reapportion seats in the House of Representatives, to realign congressional districts, and as a factor in the formulas that distribute hundreds of billions of dollars in federal funds each year. Because of the importance of this population count, procedural changes in the decennial census often reflect larger organizational shifts at the Census Bureau.

This section follows the evolution of the decennial census by detailing the events surrounding each of them. Political and technological changes, and the shifting public demand for information, have all shaped the modern census and the mission of the Census Bureau.

2020
  • 2020
  • 2010
  • 2000
  • 1990
  • 1980
  • 1970
  • 1960
  • 1950
  • 1940
  • 1930
  • 1920
  • 1910
  • 1900
  • 1890
  • 1880
  • 1870
  • 1860
  • 1850
  • 1840
  • 1830
  • 1820
  • 1810
  • 1800
  • 1790
2020

Decennial Census of Population and Housing by Decades

Census Day was April 1, 2020

Population

331,449,281 U.S. Resident Population
93.8 Population per square mile of land area
7.4 Percent increase of population from 2010 to 2020
50 Number of States

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