The U.S. Census Bureau is the leading source of information on the nation’s people, places, and economy, providing data about our country’s population size and growth as well as detailed portraits of the changing characteristics of our communities. The Census Bureau, part of the U.S. Department of Commerce, was created to address language in the Constitution on America’s need to count its population.
America’s founders recognized that this information was needed to effectively serve its people. The data collected as part of the first count in 1790 — a six-question survey — expanded in the following years to include information on the economy, immigration, migration, and agriculture. One of the most important ways all of this information has been used is to determine apportionment of the seats in the U.S. House of Representatives. The count of the U.S. population — carried out every 10 years — is called the Decennial Census of Population and Housing. During the decennial census, the Census Bureau contacts every household, asking questions such as:
In 1902, President Theodore Roosevelt signed a law establishing the Census Bureau as a permanent agency that would collect vital information and develop statistics representing the American people, including where and how they live. Today, the Census Bureau conducts three censuses — the decennial census and the twice-perdecade Economic Census and Census of Governments — as well as more than 130 different surveys. Some of these surveys are:
Distribute more than $675 billion in federal funds to local, state, and tribal governments each year. States and communities use census data to allocate funding for neighborhood improvements, public health, education, transportation, and more.
Understand where community services are needed and plan to implement them. This includes services for the elderly, new roads and schools, job training centers, and more.
Determine how the 435 seats in the U.S. House of Representatives are divided among the 50 states and make decisions about redistricting.