Country profile · North America · USA
United States: area, population and density
United States has 9,147,420 sq km of land and a 2025 population estimate of 341,784,857; calculated population density is 37 people/km².
Sources: World Bank — Land area · 2023 · World Bank — Population, total · 2025.
United States ranks 3rd of 196 by land area, 3rd by population and 148th by calculated population density among the the supported country set. Density uses the displayed population divided by land area converted to square kilometres.
- Land area
- 9,147,420 sq kmWorld Bank — Land area · 2023
- Population
- 341,784,857World Bank — Population, total · 2025
- Calculated density
- 37 people/km²Population ÷ land area in km²
Reading the figures
United States in the country comparison set
United States has 9,147,420 sq km of land area and a population value of 341,784,857 for 2025. In the 196-profile supported country set, it is 3rd by land area, 3rd by population, and 148th by calculated density.
Density is calculated from the two values above; it is not presented as an independent statistic. World Bank population and land-area series can refer to different years, so both years remain visible.
Country outline: Natural Earth Admin 0 at 1:10m. The drawing is fitted to this profile panel; use a comparison page for a shared-area scale.
Browse the North America country comparison for regional scale context.