Americas · Northern America

United States

370 cities in the atlas · 502 airports with scheduled flights

Plan a trip to United States Ask our visa desk

Statue of Liberty · Photo: Christian David · CC BY-SA 4.0 · Wikimedia Commons

Capital: Washington, D.C.
Currency: USD; United States Dollar
Local time: Eastern Daylight TimeUTC-04:00; 7 more
Calling code: +1
Driving: On the right
Plugs: Type A and B

Facts

United States in figures

From named datasets: GeoNames, CLDR, the World Bank and Wikidata. Each is credited at the foot of the page.

Capital: Washington, D.C.
Currency: United States Dollar USDToday's indicative rate: The same as your currencyIndicative, from the day's reference rates; a bank or card will charge its own.
Languages: Official: EnglishOfficial in part of the country: Spanish and HawaiianSpoken: English, Spanish, Hawaiian and French
Time zones: Hawaii-Aleutian Standard TimeUTC-10:00Hawaii-Aleutian Daylight TimeUTC-09:00Alaska Daylight TimeUTC-08:00Pacific Daylight TimeUTC-07:00Mountain Standard TimeUTC-07:00Mountain Daylight TimeUTC-06:00Central Daylight TimeUTC-05:00Eastern Daylight TimeUTC-04:00
Calling code: +1
Driving: On the right
Plugs: Type A and B120 V · 60 HzAs recorded in Wikidata.
Emergency numbers: 911general emergencyAs recorded in Wikidata. Check them locally on arrival; they are not the only safety information you need.
Population: 341,784,857 (2025, World Bank)
Area: 9,629,091 km²
Internet domain: .us
Land borders: Canada Cuba Mexico

When to go

Climate across United States

In April to October, more than half of the 150 cities with figures in United States have a mean high between 18°C and 32°C and under 150 mm of rain.

Mild to warm and dry
Mild to warm, humid or showery
Hot
Cool
Wet
Cold

The main cities, month by month
City	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sept	Oct	Nov	Dec
Washington, D.C.	4°	6°	11°	18°	23°	28°	31°	30°	27°	20°	13°	7°
New York	4°	4°	7°	12°	17°	23°	26°	26°	23°	18°	12°	7°
Los Angeles	17°	17°	19°	21°	23°	27°	30°	30°	29°	25°	21°	17°
Chicago	0°	0°	5°	10°	15°	21°	25°	25°	22°	15°	9°	3°
San Francisco	13°	14°	15°	17°	19°	21°	22°	23°	23°	21°	17°	13°
Boston	1°	2°	6°	13°	19°	24°	28°	27°	24°	16°	10°	4°
Atlanta	11°	13°	18°	23°	27°	31°	33°	33°	30°	24°	18°	13°
Philadelphia	3°	5°	10°	17°	22°	27°	30°	29°	26°	19°	12°	6°
Miami	23°	24°	25°	26°	28°	29°	30°	30°	29°	28°	26°	24°
Las Vegas	14°	16°	22°	26°	32°	39°	41°	40°	35°	27°	20°	13°
Cities good for going, of 150	10	17	48	76	132	108	89	93	123	90	48	12

Mean daily highs, modelled for an area about 50 km across: NASA POWER climatology, 2001–2020. A cell's swatch says what the month is like (key above).

On the map

Where United States is

The dashed box is the extent of the country's main landmass, from Natural Earth; outlying islands fall outside it. The dots are the cities with pages of their own.

Land borders

Cities

Cities in United States

All 370 places in the atlas: capitals, cities of 300,000 people or more, the places its airports serve, and the ones we have written guides to.

More cities · 120

Smaller places with an airport · 220

Airports

Airports in United States

Airports with scheduled flights and an IATA code, from OurAirports.

Large airports

Medium airports · 407

Photographs

United States in pictures

Photographs from Wikimedia Commons, each credited to its author, with its licence.

New York
Photo: Fred Hsu · CC BY-SA 4.0 · Wikimedia Commons
Washington, D.C.
Photo: Carol M. Highsmith · Public domain · Wikimedia Commons
Los Angeles
Photo: Alek Leckszas · CC BY-SA 4.0 · Wikimedia Commons
Chicago
Field Museum of Natural History · Photo: Sea Cow · CC BY-SA 4.0 · Wikimedia Commons
San Francisco
Photo: Lightandtruth · CC BY-SA 4.0 · Wikimedia Commons
Boston
Photo: Robert Linsdell from St. Andrews, Canada · CC BY 2.0 · Wikimedia Commons

Guides

Our guides in United States

Visas and entry

Entry rules depend on your passport and change often, so this page does not state them. Check the destination government's official immigration website, or ask our visa desk to check your case for you.

Ask our visa desk

Plan it

Plan a trip to United States

Tell us where in United States, when and who is travelling, and a person puts the flights, the stays and the rest into one quote.

Plan a trip to United States All countries

Sources for this page

All sources and licences

OurAirports — Airport data from OurAirports (ourairports.com), public domain.
NASA POWER (Prediction Of Worldwide Energy Resources), Climatology API v2 — These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.
Wikidata — Facts from Wikidata (wikidata.org), CC0.
Wikimedia Commons — Each photograph's author and licence are printed beside it.
Natural Earth v5.1.2, 1:10m admin-0 map units — Made with Natural Earth. Licence: Public domain
World Bank, World Development Indicators: Population, total (SP.POP.TOTL) — Population: World Bank, World Development Indicators (SP.POP.TOTL), CC BY 4.0.