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Overview of the USA


The United States of America is a federal constitutional republic comprising fifty states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to the east and Russia to the west across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific. The country also possesses several territories in the Caribbean and Pacific.


Officially name: The United States of America

Capital: Washington, D.C.

Largest city: New York City

Official language: None at federal level

Government: Federal presidential constitutional republic

Total 9,826,675 km2 (3rd/4th)
Water (%) 6.76


2010 estimate 308,745,538
Density 33.7/km2
87.4/sq mi

Currency: United States dollar ($) (USD)

Time zone
(UTC−5 to −10)
Summer (DST) (UTC−4 to −10)

Drives on the right

Internet TLD: .us .gov .mil .edu

Calling code: +1