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United States of America |
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| Capital | Washington, D.C. 38°53′N 77°01′W |
| Largest city | New York City |
| Official languages | None at federal level |
| National language | English |
| Demonym | American |
| Government |  Federal Presidential Constitutional |
| President | Barack Obama (D) |
| Vice President | Joe Biden (D) |
| Speaker of the House | John Boehner (R) |
| Chief Justice | John Roberts |
| Legislature | Congress |
| Upper house | Senate |
| Lower house | House of Representatives |
| Independence from Great Britain | |
| Declared | July 4, 1776 |
| Recognized | September 3, 1783 |
| Constitution | June 21, 1788 |
| Area | |
| Total | 9,826,675 km2 (3rd/4th) 3,794,101 sq mi |
| Water (%) | 6.76 |
| Population | |
| 2013 estimate | 317,566,000 (3rd) |
| Density | 34.2/km2 (179th) |
| 88.6/sq mi | |
| GDP(PPP) | 2013 estimate |
| Total | $16.724 trillion (1st) |
| Per capita | $52,839 (6th) |
| GDP(nominal) | 2013 estimate |
| Total | $16.724 trillion (1st) |
| Per capita | $52,839 (9th) |
| Gini(2011) | 47.7 high • 39th (2009) |
| HDI (2013) | 0.937 very high • 3rd |
| Currency | United States dollar($)(USD) |
| Time zone | (UTC−5 to −10) |
| Summer (DST) | (UTC−4 to −10) |
| Drives on the | right |
| Calling code | +1 |
| ISO 3166 code | US |
| Internet TLD | .us .gov .mil .edu |
The us of America (USA), ordinarily remarked because the us (US), America, or just the States, may be a federal republic consisting of fifty states and a administrative division. The forty eight contiguous states and also the administrative division of Washington, D.C., area unit in central North America between North American country and Mexico. The state of American state is that the northwestern a part of North America and also the state of Hawaii is associate solid ground within the mid-Pacific.
The country additionally has 5 inhabited and 9 unpeopled territories within the Pacific and also the Caribbean. At 3.79 million sq. miles (9.83 million km2) in total and with around 316 million individuals, the us is that the fourth-largest country by total space and third largest by population. it’s one among the world’s most ethnically various and ism nations, the merchandise of large-scale immigration from several countries. The earth science and climate of the us is additionally very various, and it’s home to a good type of life.
The us may be a developed country and has the world’s largest economic system, with associate calculable GDP in 2013 of $16.7 trillion – twenty third of worldwide nominal GDP and nineteen at purchasing-power parity. The economy is burning by associate abundance of natural resources and also the world’s highest employee productivity, with per capita GDP being the world’s sixth-highest in 2010.
While the U.S. economy is taken into account post-industrial, it continues to be one among the world’s largest makers. The U.S. has the best mean and second-highest median family financial gain within the OECD likewise because the highest average wage, although it’s the fourth most unequal financial gain distribution among OECD nations with roughly Sixteen Personality Factor Questionnaire of the population living in poorness. The country accounts for thirty ninth of worldwide military defrayment, being the world’s foremost economic and military power, a outstanding political and cultural force, and a frontrunner in research and technological innovation.
The country additionally has 5 inhabited and 9 unpeopled territories within the Pacific and also the Caribbean. At 3.79 million sq. miles (9.83 million km2) in total and with around 316 million individuals, the us is that the fourth-largest country by total space and third largest by population. it’s one among the world’s most ethnically various and ism nations, the merchandise of large-scale immigration from several countries. The earth science and climate of the us is additionally very various, and it’s home to a good type of life.
The us may be a developed country and has the world’s largest economic system, with associate calculable GDP in 2013 of $16.7 trillion – twenty third of worldwide nominal GDP and nineteen at purchasing-power parity. The economy is burning by associate abundance of natural resources and also the world’s highest employee productivity, with per capita GDP being the world’s sixth-highest in 2010.
While the U.S. economy is taken into account post-industrial, it continues to be one among the world’s largest makers. The U.S. has the best mean and second-highest median family financial gain within the OECD likewise because the highest average wage, although it’s the fourth most unequal financial gain distribution among OECD nations with roughly Sixteen Personality Factor Questionnaire of the population living in poorness. The country accounts for thirty ninth of worldwide military defrayment, being the world’s foremost economic and military power, a outstanding political and cultural force, and a frontrunner in research and technological innovation.