U.S. Census Bureau

The U.S. Census Bureau (officially the Bureau of the Census as defined in 13 U.S.C. §11) is the government agency responsible to perform the official decennial (every 10 years) count of people living in the U.S. It also gathers other national demographic and economic data. As part of the United States Department of Commerce, the Census Bureau serves as a leading source of data about America's people and economy.