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From Wikipedia, the free encyclopedia
United States of America | |
---|---|
Motto:
Other traditional mottos
| |
Anthem: "The Star-Spangled Banner" | |
Capital | Washington, D.C. 38°53′N 77°01′W |
Largest city | New York City 40°43′N 74°00′W |
Official languages | None at federal level |
Recognised regional languages | |
National language | English[b] |
Demonym(s) | American |
Government | Federal presidential constitutional republic |
Barack Obama | |
Joseph Biden | |
John Boehner | |
John Roberts | |
Legislature | Congress |
Senate | |
House of Representatives | |
July 4, 1776 | |
March 1, 1781 | |
September 3, 1783 | |
June 21, 1788 | |
August 21, 1959 | |
Area | |
• Land (93.02%) | 9,147,593 km2 (3,531,905 sq mi)[5][c] (3rd) |
Population | |
• 2015 estimate | 320,206,000[6] (3rd) |
• Density | 34.2/km2 (88.6/sq mi) (180th) |
GDP (PPP) | 2013 estimate |
• Total | $16.72 trillion [5] (1st) |
• Per capita | $52,800 [5] (10th) |
GDP (nominal) | 2013 estimate |
• Total | $16.768 trillion[7] (1st) |
• Per capita | $53,042[8] (9th) |
Gini (2013) | 38.0[9][10][11] medium inequality |
HDI (2013) | 0.914[12] very high (5th) |
Currency | [[]] ($) (USD) |
Time zone | UTC−5 to −10 |
UTC−4 to −10[d] | |
Drives on | right[e] |
Calling code | +1 |
ISO 3166 code | US |
Internet TLD | .us .gov .mil .edu |
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The composition by John Philip Sousa entitled 'The Stars and Stripes Forever' is the national march.
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