United States

United States of America
Motto: "In God We Trust"[1]
Other traditional mottos:[2]
Anthem: "The Star-Spangled Banner"[3]
Orthographic map of the U.S. in North America
World map showing the U.S. and its territories
CapitalWashington, D.C.
38°53′N 77°1′W / 38.883°N 77.017°W / 38.883; -77.017
Largest cityNew York City
40°43′N 74°0′W / 40.717°N 74.000°W / 40.717; -74.000
Official languagesNone at the federal level[a]
National languageEnglish (de facto)
Ethnic groups
(2020)[4][5][6]
By race:
By origin:
Religion
(2021)[7]
  • 29% unaffiliated
  • 1% Buddhism
  • 1% Hinduism
  • 1% Islam
  • 1% Judaism
  • 2% other
  • 2% unanswered
Demonym(s)American[b][8]
GovernmentFederal presidential constitutional republic
• President
Joe Biden
Kamala Harris
Patrick McHenry (acting)
John Roberts
LegislatureCongress
Senate
House of Representatives
Independence 
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[c])
• Water (%)
4.66[10] (2015)
• Land area
3,531,905 sq mi (9,147,590 km2) (3rd)
Population
• 2022 estimate
Neutral increase 333,287,557[11]
• 2020 census
331,449,281[d][12] (3rd)
• Density
87/sq mi (33.6/km2) (185th)
GDP (PPP)2023 estimate
• Total
Increase $26.855 trillion[13] (2nd)
• Per capita
Increase $80,035[13] (8th)
GDP (nominal)2023 estimate
• Total
Increase $26.855 trillion[13] (1st)
• Per capita
Increase $80,035[13] (7th)
Gini (2020)Negative increase 39.4[e][14]
medium
HDI (2021)Increase 0.921[15]
very high · 21st
CurrencyU.S. dollar ($) (USD)
Time zoneUTC−4 to −12, +10, +11
• Summer (DST)
UTC−4 to −10[f]
Date formatmm/dd/yyyy[g]
Driving sideright[h]
Calling code+1
ISO 3166 codeUS
Internet TLD.us[16]

The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or simply America, is a country primarily located in North America and consisting of 50 states, a federal district, five major unincorporated territories, and nine Minor Outlying Islands.[i] It includes 326 Indian reservations. It is the world's third-largest country by both land and total area.[c] 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.[j] With a population of over 333 million,[k] 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.

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.

  1. ^ 36 U.S.C. § 302
  2. ^ "The Great Seal of the United States" (PDF). U.S. Department of State, Bureau of Public Affairs. 2003. Retrieved February 12, 2020.
  3. ^ "An Act To make The Star-Spangled Banner the national anthem of the United States of America". H.R. 14, Act of March 3, 1931. 71st United States Congress.
  4. ^ "2020 Census Illuminates Racial and Ethnic Composition of the Country". United States Census. Retrieved August 13, 2021.
  5. ^ "Race and Ethnicity in the United States: 2010 Census and 2020 Census". United States Census. Retrieved August 13, 2021.
  6. ^ "A Breakdown of 2020 Census Demographic Data". NPR. August 13, 2021.
  7. ^ "About Three-in-Ten U.S. Adults Are Now Religiously Unaffiliated". Measuring Religion in Pew Research Center's American Trends Panel. Pew Research Center. December 14, 2021. Retrieved December 21, 2021.
  8. ^ Compton's Pictured Encyclopedia and Fact-index: Ohio. 1963. p. 336.
  9. ^ Areas of the 50 states and the District of Columbia but not Puerto Rico nor other island territories per "State Area Measurements and Internal Point Coordinates". Census.gov. August 2010. Retrieved March 31, 2020. reflect base feature updates made in the MAF/TIGER database through August, 2010.
  10. ^ "Surface water and surface water change". Organisation for Economic Co-operation and Development (OECD). 2015. Retrieved October 11, 2020.
  11. ^ Bureau, US Census. "Growth in U.S. Population Shows Early Indication of Recovery Amid COVID-19 Pandemic". Census.gov. Retrieved December 24, 2022.
  12. ^ "Census Bureau's 2020 Population Count". United States Census. Retrieved April 26, 2021. The 2020 census is as of April 1, 2020.[dead link]
  13. ^ a b c d "World Economic Outlook Database, April 2023". IMF.org. International Monetary Fund. April 10, 2023. Archived from the original on October 11, 2022. Retrieved April 10, 2023.
  14. ^ Bureau, US Census. "Income and Poverty in the United States: 2020". Census.gov. p. 48. Retrieved July 26, 2022.
  15. ^ "Human Development Report 2021/2022" (PDF). United Nations Development Programme. September 8, 2022. Retrieved September 8, 2022.
  16. ^ "The Difference Between .us vs .com". Cozab. January 3, 2022. Archived from the original on April 16, 2023. Retrieved August 11, 2023.
  17. ^ U.S. State Department, Common Core Document to U.N. Committee on Human Rights, December 30, 2011, Item 22, 27, 80. And U.S. General Accounting Office Report, U.S. Insular Areas: application of the U.S. Constitution Archived November 3, 2013, at the Wayback Machine, November 1997, pp. 1, 6, 39n. Both viewed April 6, 2016.
  18. ^ "China". CIA World Factbook. Retrieved June 10, 2016.
  19. ^ "United States". Encyclopædia Britannica. Archived from the original on December 19, 2013. Retrieved January 31, 2010.
  20. ^ "United States Virgin Islands". Encyclopædia Britannica (Online ed.). Archived from the original on April 29, 2020. Retrieved July 3, 2020. [...]which also contains its near neighbor, the British Virgin Islands.
  21. ^ "United Kingdom Overseas Territories – Toponymic Information" (PDF). Present Committee on Geographic Names. Retrieved January 7, 2023. – Hosted on the Government of the United Kingdom website.
  22. ^ "Puerto Rico". Encyclopædia Britannica (Online ed.). Archived from the original on July 2, 2020. Retrieved July 3, 2020.
  23. ^ Anderson, Ewan W. (2003). International Boundaries: A Geopolitical Atlas. Routledge: New York. ISBN 9781579583750; OCLC 54061586
  24. ^ Charney, Jonathan I., David A. Colson, Robert W. Smith. (2005). International Maritime Boundaries, 5 vols. Hotei Publishing: Leiden.
  25. ^ "Pacific Maritime Boundaries". pacgeo.org. Archived from the original on July 31, 2020. Retrieved July 3, 2020.


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