4th Grade Terranova Practice Test

Counting and tracking how many people live in the United States is done by the U.S. Census Bureau. It conducts the national census every ten years, counting every person and gathering basic details about households. This information helps determine how many representatives each state gets in Congress and guides funding and services across the country.

Other organizations focus on different areas: the Federal Reserve watches the economy and money, the Department of Education collects data about schools and students, and the National Park Service gathers information about parks and visitors. Because the question is about population data, the U.S. Census Bureau is the best fit.