2010 United States census
The United States census of 2010 was the twenty-third 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 half a million people as well as the first in which all 100 largest cities recorded populations of over 200,000.
| Twenty-third census of the United States | ||
|---|---|---|
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 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 | California (37,253,956) | |
| Least populous | Wyoming (563,826) | |