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United States Census
The United States Census is a census done in the United States every ten years. It is required by the United States Constitution. The count is used to determine how many places in the House of Representatives each state has. It also determines how much government money is spent in different locations.
The United States Census Bureau is responsible for the United States Census. The first census after the American Revolution was in 1790. Secretary of State Thomas Jefferson was responsible for this first census.