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The U.S. census counts each resident of the country, where they live on April 1, every ten years ending in zero. The Constitution mandates the enumeration to determine how to apportion the House of Representatives among the states.
U.S. and World Population Clock
See U.S. population by date, region, age and sex, and the top 10 areas by people and density. The world view has basic facts, trade, and projections by country.
Our Surveys & Programs
Our surveys provide periodic and comprehensive statistics about the nation. This data is critical for government programs, policies, and decision-making.
Population
Our population statistics cover age, sex, race, Hispanic origin, migration, ancestry, language use, veterans, as well as population estimates and projections.
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