United States of America | |
---|---|
Motto:
Other traditional mottos
| |
Anthem: "The Star-Spangled Banner" | |
Capital | Washington, D.C. 38°53′N 77°01′W / 38.883°N 77.017°W |
Largest city | New York City 40°43′N 74°00′W / 40.717°N 74.000°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 |
• Summer (DST) | UTC−4 to −10[d] |
Drives on | right[e] |
Calling code | +1 |
ISO 3166 code | US |
Internet TLD | .us .gov .mil .edu |
|
- ^ 36 U.S.C. § 302 National motto
- ^ Simonson, 2010
- ^ Dept. of Treasury, 2011
- ^ "U.S. Code: Title 36, 304". United States Code. United States: Cornell Law School. August 12, 1998. Retrieved February 15, 2015.
The composition by John Philip Sousa entitled 'The Stars and Stripes Forever' is the national march.
- ^ a b c Cite error: The named reference
WF
was invoked but never defined (see the help page). - ^ "U.S. and World Population Clock". U.S. Census Bureau. Retrieved January 17, 2015.
- ^ "GDP (current US$)". World Bank Open Data. The World Bank. Retrieved January 20, 2015.
- ^ "GDP per capita (current US$)". World Bank Open Data. The World Bank. Retrieved January 20, 2015.
- ^ "OECD Income Distribution Database: Gini, poverty, income, Methods and Concepts". Organisation for Economic Co-operation and Development.
- ^ "Global inequality: How the U.S. compares". Pew Research.
- ^ "Income Distribution and Poverty : by country - INEQUALITY". OECD.
- ^ "2014 Human Development Report Summary" (PDF). United Nations Development Programme. 2014. pp. 21–25. Retrieved July 27, 2014.
- ^ Cite error: The named reference
ILW
was invoked but never defined (see the help page). - ^ New Mexico Code 1-16-7 (1981).
- ^ New Mexico Code 14-11-13 (2011).
- ^ Cobarrubias, Juan; Fishman, Joshua A. (1983). Progress in Language Planning: International Perspectives. Walter de Gruyter. p. 195. ISBN 90-279-3358-8. Retrieved December 27, 2011.
- ^ García, Ofelia (2011). Bilingual Education in the 21st Century: A Global Perspective. John Wiley & Sons. p. 167. ISBN 1-4443-5978-9. Retrieved December 27, 2011.
- ^ "Ecological Footprint Atlas 2010" (PDF). Global Footprint Network. Retrieved July 11, 2011.