| United States of America | ||||||
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| Motto: In God We Trust (official) E Pluribus Unum (From Many, One; Latin, traditional) |
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| Anthem: "The Star-Spangled Banner" | ||||||
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| Capital | Washington, D.C. 38°53′N 77°02′W / 38.883, -77.033 |
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| Largest city | New York City | |||||
| Official languages | None at federal level1 | |||||
| National language | English (de facto)2 | |||||
| Demonym | American | |||||
| Government | Constitutional federal presidential republic | |||||
| - | President | George W. Bush (R) | ||||
| - | Vice President | Dick Cheney (R) | ||||
| - | Speaker of the House | Nancy Pelosi (D) | ||||
| - | Chief Justice | John Roberts | ||||
| Independence from the Kingdom of Great Britain | ||||||
| - | Declared | July 4, 1776 | ||||
| - | Recognized | September 3, 1783 | ||||
| - | Current constitution | June 21, 1788 | ||||
| Area | ||||||
| - | Total | 9,826,630 km² [1](3rd/4th3) 3,794,066 sq mi |
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| - | Water (%) | 6.76 | ||||
| Population | ||||||
| - | 2008 estimate | 305,012,000[2] (3rd4) | ||||
| - | 2000 census | 281,421,906[3] | ||||
| - | Density | 31/km² (180th) 80/sq mi |
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| GDP (PPP) | 2007 estimate | |||||
| - | Total | $13.543 trillion[4] (1st) | ||||
| - | Per capita | $43,444 (4th) | ||||
| GDP (nominal) | 2007 estimate | |||||
| - | Total | $13.794 trillion[4] (1st) | ||||
| - | Per capita | $43,594 (11th) | ||||
| Gini (2006) | 47.0[5] (high) | |||||
| HDI (2005) | 0.951 (high[6]) (12th) | |||||
| Currency | United States dollar ($) (USD "$") |
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| Time zone | (UTC-5 to -10) | |||||
| - | Summer (DST) | (UTC-4 to -10) | ||||
| Internet TLD | .us .gov .mil .edu | |||||
| Calling code | +1 | |||||
| 1 | English is the official language of at least 28 states—some sources give a higher figure, based on differing definitions of "official." English and Hawaiian are both official languages in the state of Hawaii. | |||||
| 2 | English is the de facto language of American government and the sole language spoken at home by 82% of Americans age five and older. Spanish is the second most commonly spoken language. | |||||
| 3 | Whether the United States or the People's Republic of China is larger is disputed. The figure given is per the U.S. Central Intelligence Agency's World Factbook. Other sources give smaller figures. All authoritative calculations of the country's size include only the fifty states and the District of Columbia, not the territories. | |||||
| 4 | The population estimate includes people whose usual residence is in the fifty states and the District of Columbia, including noncitizens. It does not include either those living in the territories, amounting to more than four million U.S. citizens (most in Puerto Rico), or U.S. citizens living outside the United States. | |||||
