What is the Population of United States?
Facts last checked 9 October 2026.
United States has a population of approximately 340,110,988 people, making it the 3rd most populated country of the 196 countries covered on this site — around 4.25% of the world's population. With a land area of 9,525,067 km², the population density is roughly 36 people per km².
| Population | 340,110,988 |
|---|---|
| Population rank | 3rd of 196 |
| Share of world population | 4.25% |
| Area | 9,525,067 km² |
| Population density | 36 / km² |
| Demonym | American |
Curious about United States?
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Desk Globe
See where United States and its 340.1 million people sit on the globe.
Countries with a similar population
| Country | Population | Rank |
|---|---|---|
| United States | 340,110,988 | 3rd |
| India | 1,417,492,000 | 1st |
| China | 1,408,280,000 | 2nd |
| Indonesia | 284,438,782 | 4th |
| Pakistan | 241,499,431 | 5th |
| Nigeria | 223,800,000 | 6th |
United States compared with its neighbours
United States in context
- United States covers 9,525,067 km², making it the 4th largest of the 196 countries on this site.
- It shares a land border with 2 countries: Canada, Mexico.
- With 340,110,988 people, United States holds about 66.4% of the population of North America.
- Traffic drives on the right, and calendars start the week on Sunday.
- United States is a member state of the United Nations.
Compare United States
- United States vs Canada
- United States vs United Kingdom
- United States vs Mexico
- United States vs China
- United States vs Russia
- United States vs Australia
Population of United States — FAQ
What is the population of United States?
The population of United States is approximately 340,110,988 (340.1 million) based on the latest available data.
What is the population of United States in 2026?
The latest estimate in our dataset puts the population of United States at approximately 340,110,988 people (an estimate, not a live count — national statistics offices publish the official figures). United States is the 3rd most populated country in our dataset.
How many people live in United States?
Approximately 340,110,988 people live in United States, making it the 3rd most populated country out of 196 covered on this site.
How does United States rank by population?
United States is the 3rd most populated of the 196 countries covered on this site, with a world population share of 4.25%.
What is the population density of United States?
United States has a population density of roughly 36 people per km², based on a land area of 9,525,067 km².
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