Countries
Key facts
- Capital
- Washington D.C.
- Region
- Americas, North America
- Population
- 341,784,857 (2025)
- Area
- 9,629,091 km²
- Currency
- United States dollar (USD)
- Languages
- English, Spanish, Hawaiian, French
- Calling code
- +1
- Internet domain
- .us
- ISO codes
- US, USA, 840
- Time zone
- UTC-10:00 to UTC-5:00
- United Nations
- Member state
- Postal code pattern
- #####-#### (# = digit, @ = letter)
Land and position
The United States covers about 9,629,091 square kilometres. By area it ranks 4th among the 250 countries and territories on this site. It is a little smaller than Canada and a little larger than China. It shares a land border with 2 neighbours: Canada, Mexico. Its centre lies at about 38° north, 97° west, in the northern hemisphere.
Neighbours
People
About 342 million people live in the United States (World Bank, 2025). That makes it the 3rd most populous of the 246 places on this site with a figure, with about 4.2 percent of the world's people. On average there are 35 people to each square kilometre. About 80 percent of people live in towns and cities (World Bank, 2025). A baby born there can expect to live about 79 years (World Bank, 2024). Languages listed for it: English, Spanish, Hawaiian, French. A person from the United States is called American.
Money and economy
The currency is the United States dollar (code USD, symbol $). It is also the main currency of American Samoa, British Indian Ocean Territory, British Virgin Islands, Caribbean Netherlands, Ecuador, El Salvador, Guam, Marshall Islands and 7 more. The World Bank puts the size of its economy (GDP) at about US$ 30.8 trillion (2025), which is about US$ 90,027 for each person (2025).
Time
The United States spans 29 time zone areas, from UTC-10:00 to UTC-5:00. Clocks are moved for daylight saving time in part of the year.
Time now in New York: loading
Offsets are for January 2026. See Time Zones for a converter.
Largest cities
| City | People |
|---|---|
| New York City | 8,804,190 |
| Los Angeles | 3,820,914 |
| Brooklyn | 2,736,074 |
| Chicago | 2,664,452 |
| Queens | 2,316,841 |
| Houston | 2,314,157 |
City figures are from GeoNames and count the city itself, not the wider urban area. They can be some years old, so use them to see the order of size.
More in North America
Bermuda, Greenland, Saint Pierre and Miquelon, United States Minor Outlying Islands. See the whole region.
Figures were collected on 11 November 2026 from the World Bank, GeoNames and the open countries data set. See About and data sources. Borders and names follow those sources and do not express any view on disputed territory.