Explore U.S. population by place
Search for a named place or choose a geographic level. A city, county, state and region describe different boundaries; each has its own population figure.
United States population
The national resident total, annual history, census milestones and components of change. National coverage includes the 50 states and DC.
Browse united states populationState populations
All 50 states and the District of Columbia, with state-specific county and city directories. DC is identified as a federal district.
Browse state populationsCounty populations
3,144 counties and county equivalents, including parishes, boroughs, independent cities and Connecticut planning regions.
Browse county populationsCity and town populations
19,479 supported incorporated-place and balance records. Whole-place observations are distinct from county portions and metropolitan areas.
Browse city and town populationsU.S. Census regions
The Northeast, Midwest, South and West, with official region totals and an explicit list of member states.
Browse u.s. census regions
Choose the geography that matches your question
A whole incorporated city can cross county boundaries. A county includes residents inside and outside incorporated places. A state includes all its county equivalents, and a Census region groups whole states. Do not add overlapping geographic levels to form a custom total. The city, county and metro guide explains the distinctions with research examples.
Every published profile identifies its official code, dated population estimate, source file and release. Annual totals use PEP Vintage 2025; age characteristics, metro profiles and census-designated places require separate validated products. See coverage for these limitations, or population tools to compare matching places.
Example: Austin city versus Travis County
Austin, Texas is an incorporated place with Census code 4805000. Travis County, code 48453, is a county geography. Austin extends into Travis, Williamson and Hays counties, so neither profile is a substitute for the other. Search results include the geography type and state to help distinguish these records. For a report about city residents, start with Austin; for county-wide services, start with Travis County. Their figures can be compared as geographic context, but cannot be summed without overlapping residents.