2010 United States census

Twenty-third census
of the United States
Twenty-third census; of the United States
	Seal of the U.S. Census Bureau
	2010 U.S. census logo
General information
Country	United States
Results
Total population	308,745,538 ( 9.7%)
Most populous state	California (37,253,956)
Least populous state	Wyoming (563,826)

The 2010 United States census was the 23rd United States census. National Census Day, the reference day used for the census, was April 1, 2010.^[1] The census was taken via mail-in citizen self-reporting, with enumerators serving to spot-check randomly selected neighborhoods and communities. As part of a drive to increase the count's accuracy, 635,000 temporary enumerators were hired.^[2]^[3] The population of the United States was counted as 308,745,538,^[4] a 9.7% increase from the 2000 United States Census. This was the first census in which all states recorded a population of over 500,000 people as well as the first in which all 100 largest cities recorded populations of over 200,000.

^ "Interactive Timeline". About the 2010 Census. U.S. Census Bureau. 2011. Archived from the original on December 20, 2010. Retrieved June 17, 2010.
^ Cite error: The named reference hawaii was invoked but never defined (see the help page).
^ Cite error: The named reference 635Khired was invoked but never defined (see the help page).
^ "U.S. Census Bureau Announces 2010 Census Population Counts – Apportionment Counts Delivered to President" (Press release). United States Census Bureau. December 21, 2010. Archived from the original on December 24, 2010. Retrieved January 9, 2011.

[timeline-1] "Interactive Timeline". About the 2010 Census. U.S. Census Bureau. 2011. Archived from the original on December 20, 2010. Retrieved June 17, 2010.

[hawaii-2] Cite error: The named reference hawaii was invoked but never defined (see the help page).

[635Khired-3] Cite error: The named reference 635Khired was invoked but never defined (see the help page).

[4] "U.S. Census Bureau Announces 2010 Census Population Counts – Apportionment Counts Delivered to President" (Press release). United States Census Bureau. December 21, 2010. Archived from the original on December 24, 2010. Retrieved January 9, 2011.

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