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United States

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Currency code: 
Currency name: 
United States dollar
Country name: 
United States
Capital: 
Washington, D.C.
Country code: 
Continent: 
Independence: 
July 4, 1776
Independent from: 
4 July 1776 declared; 3 September 1783 recognized by Great Britain
Total area: 
9,826,675
Total area note: 
9,826,675note: includes only the 50 states and District of Columbia
Land area: 
9,161,966
Water area: 
664,709
Population: 
316,668,567
Population note: 
316,668,567 (July 2013 est.)
Official language: 
English (de facto)
All languages: 
English 82.1%, Spanish 10.7%, other Indo-European 3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census) note: the US has no official national language, but English has acquired official status in 28 of the 50 states; Hawaiian is an official language in the state of Hawaii
Time zone: 
(UTC−5 to −10) - Summer (DST) (UTC−4 to −10)
Drive on: 
Right
Calling code: 
+1
Domain: 
.us .gov .mil .edu