WASHINGTON, D.C-The U.S. Census Bureau announced that the 2010 Census showed the resident population of the United States on April 1, 2010, was 308,745,538.
The resident population represented an increase of 9.7 percent over the 2000 U.S. resident population of 281,421,906. Commerce Secretary Gary Locke, Acting Commerce Deputy Secretary Rebecca Blank and Census Bureau Director Robert Groves unveiled the official counts at the National Press Club in Washington, D.C.
The U.S. resident population represents the total number of people in the 50 states and the District of Columbia.
The most populous state was California (37,253,956); the least populous, Wyoming (563,626). The state that gained the most numerically since the 2000 Census was Texas (up 4,293,741 to 25,145,561) and the state that gained the most as a percentage of its 2000 Census count was Nevada (up 35.1% to 2,700,551).
Regionally, the South and the West picked up the bulk of the population increase, 14,318,924 and 8,747,621, respectively. But the Northeast and the Midwest also grew: 1,722,862 and 2,534,225.
Additionally, Puerto Rico's resident population was 3,725,789, a 2.2 percent decrease over the number counted a decade earlier.
Article I, Section 2 of the U.S. Constitution calls for a census of the nation's population every 10 years to apportion the House seats among the states. The 2010 Census is the 23rd census in our nation's history.