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United States
Country primarily located in North America / From Wikipedia, the free encyclopedia
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The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America and consisting of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands,[lower-alpha 9] and 326 Indian reservations. It is the world's third-largest country by both land and total area.[lower-alpha 3] It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations.[lower-alpha 10] With a population of over 333 million,[lower-alpha 11] it is the most populous country in the Americas and the third-most populous in the world. The national capital of the United States is Washington, D.C., and its most populous city and principal financial center is New York City.
United States of America | |
|---|---|
| Motto: "In God We Trust"[1] Other traditional mottos:[2]
| |
| Anthem: "The Star-Spangled Banner"[3] | |
| Capital | Washington, D.C. 38°53′N 77°1′W |
| Largest city | New York City 40°43′N 74°0′W |
| Official languages | None at the federal level[lower-alpha 1] |
| National language | English (de facto) |
| Ethnic groups | By race:
By origin:
|
| Religion (2021)[7] |
|
| Demonym(s) | American[lower-alpha 2][8] |
| Government | Federal presidential constitutional republic |
| Joe Biden | |
| Kamala Harris | |
| Kevin McCarthy | |
| John Roberts | |
| Legislature | Congress |
| Senate | |
| House of Representatives | |
| Independence from Great Britain | |
| July 4, 1776 (1776-07-04) | |
| March 1, 1781 (1781-03-01) | |
| September 3, 1783 (1783-09-03) | |
| June 21, 1788 (1788-06-21) | |
| May 5, 1992 (1992-05-05) | |
| Area | |
• Total area | 3,796,742 sq mi (9,833,520 km2)[9] (3rd[lower-alpha 3]) |
• Water (%) | 4.66[10] (2015) |
• Land area | 3,531,905 sq mi (9,147,590 km2) (3rd) |
| Population | |
• 2022 estimate |  333,287,557[11] |
• 2020 census | 331,449,281[lower-alpha 4][12] (3rd) |
• Density | 87/sq mi (33.6/km2) (185th) |
| GDP (PPP) | 2023 estimate |
• Total |  $26.855 trillion[13] (2nd) |
• Per capita | $80,035[13] (8th) |
| GDP (nominal) | 2023 estimate |
• Total | $26.855 trillion[13] (1st) |
• Per capita | $80,035[13] (7th) |
| Gini (2020) |  39.4[lower-alpha 5][14]medium |
| HDI (2021) | 0.921[15] very high · 21st |
| Currency | U.S. dollar ($) (USD) |
| Time zone | UTC−4 to −12, +10, +11 |
| UTC−4 to −10[lower-alpha 6] | |
| Date format | mm/dd/yyyy[lower-alpha 7] |
| Driving side | right[lower-alpha 8] |
| Calling code | +1 |
| ISO 3166 code | US |
| Internet TLD | .us[16] |
Indigenous peoples have inhabited the Americas for thousands of years. Beginning in 1607, British colonization led to the establishment of the Thirteen Colonies in what is now the Eastern United States. They clashed with the British Crown over taxation and political representation which led to the American Revolution and the ensuing Revolutionary War. The United States declared independence on July 4, 1776, becoming the first nation-state founded on Enlightenment principles of unalienable natural rights, consent of the governed, and liberal democracy. The country began expanding across North America, spanning the continent by 1848. Sectional division over slavery led to the secession of the Confederate States of America, which fought the remaining states of the Union during the American Civil War (1861–1865). With the Union's victory and preservation, slavery was abolished nationally. By 1890, the United States had established itself as a great power, becoming the world's largest economy. After Japan's attack on Pearl Harbor in 1941, the U.S. entered World War II on the side of the Allies. The aftermath of the war left the United States and the Soviet Union as the world's two superpowers and led to the Cold War. During the Cold War, both countries engaged in a struggle for ideological dominance but avoided direct military conflict. They also competed in the Space Race, which culminated in the 1969 landing of Apollo 11, making the U.S. the only nation to land humans on the Moon. With the Soviet Union's collapse and the subsequent end of the Cold War in 1991, the United States emerged as the world's sole superpower.
The United States government is a federal republic and a representative democracy with three separate branches of government: executive, legislative, and judicial. It has a bicameral national legislature composed of the House of Representatives, a lower house based on population; and the Senate, an upper house based on equal representation for each state. Many policy issues are decentralized at a state or local level, with widely differing laws by jurisdiction. The U.S. ranks highly in international measures of quality of life, income and wealth, economic competitiveness, human rights, innovation, and education; it has low levels of perceived corruption. It has higher levels of incarceration and inequality than most other liberal democracies, and is the only liberal democracy without universal healthcare. As a melting pot of cultures and ethnicities, the U.S. has been drastically shaped by the world's largest immigrant population.
The United States is a developed country that has the highest disposable income per capita in the world. Its economy accounts for approximately a quarter of global GDP and is the world's largest by GDP at market exchange rates. It is the world's largest importer and second-largest exporter, and possesses the largest amount of wealth of any country. The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, NATO, World Health Organization, and is a permanent member of the United Nations Security Council. It wields considerable global influence as the world's foremost political, cultural, economic, military, and scientific power.