The first U.S. Census was conducted in 1790 by Thomas Jefferson. It had 6 questions. As required by the U.S. Constitution, a decennial census has been conducted every ten years since then.
Purpose of the Census
In addition to obtaining an accurate population count, the information from the Census helps to determine how more than $400 billion of federal funding is spent on programs, services, and infrastructure improvements. The U.S. Census Bureau relies on assistance from all levels to ensure an accurate and complete count. View current information for the 2020 Census.