U.S. Census

Main website for the United States Census Bureau. Includes links to data and other resources.

Explore Census Data from the US Census Bureau, the leading source of quality data about the nation's people and economy. Includes data profiles by subject, maps and visualizations, and industry data.

QuickFacts provides statistics for all states and counties, and for cities and towns with a population over 5,000.

Easily navigable site of Census data providing charts, maps, and tables. Data includes information such as multiracial and population growth, population by race, age structure, and family structure. Site created by the Social Science Data Analysis Network (SSDAN) at the University of Michigan.

Population counts for the U.S. and the World, including population by state and country.