1790 Gazette of the United States
announcing the passage of the first
census act - View Larger
The census has been taken every ten years since the early days of the United States of America.
2000 Census Promotional Vehicle
Although the Census Bureau carries out hundreds of surveys every year, its most
well-known duty is still to conduct the decennial census. Census results have
several high profile applications: they are used to reapportion seats in the
House of Representatives, to realign congressional districts, and as a factor
in the formulas that distribute hundreds of billions of dollars in federal funds
each year. Because of the importance of this population count, procedural changes
in the decennial census often reflect larger organizational shifts at the Census
Bureau.
This section follows the evolution of the decennial census by detailing the events surrounding each of them. Political and technological changes, and the shifting public demand for information, have all shaped the modern census and the mission of the Census Bureau.