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United States of America

Motto: 

USA orthographic.svg
US insular areas.svg
Capital
Largest city
Official languagesNone at federal level[a]
National languageEnglish
Ethnic groups
(2019)[8]
Ethnicity:
Religion
See Religion in the United States
Demonym(s)American[b][9]
GovernmentFederalpresidentialconstitutional republic
Donald Trump (R)
Mike Pence (R)
Nancy Pelosi (D)
John Roberts
LegislatureCongress
Senate
House of Representatives
Independence 
July 4, 1776
March 1, 1781
September 3, 1783
June 21, 1788
September 25, 1789
August 21, 1959
May 5, 1992
Area
• Total area
3,796,742 sq mi (9,833,520 km2)[d][10] (3rd/4th)
• Water (%)
4.66 (as of 2015)[11]
• Total land area
3,531,905 sq mi (9,147,590 km2)
Population
• 2019 estimate
Increase 328,239,523[8] (3rd)
• 2010 census
308,745,538[e][12] (3rd)
• Density
87/sq mi (33.6/km2) (146th)
GDP (PPP)2020 estimate
• Total
Decrease$20.807 trillion[13] (2nd)
• Per capita
Decrease $63,051[13] (7th)
GDP (nominal)2020 estimate
• Total
Decrease$20.807 trillion[13] (1st)
• Per capita
Decrease $63,051[13] (5th)
Gini (2020)Negative increase 48.5[14]
high
HDI (2018)Increase 0.920[15]
very high · 15th
CurrencyUnited States dollar ($) (USD)
Time zoneUTC−4 to −12, +10, +11
• Summer (DST)
UTC−4 to −10[f]
Date format
  • mm/dd/yyyy
  • yyyy-mm-dd
Mains electricity120 V–60 Hz
Driving sideright[g]
Calling code+1
ISO 3166 codeUS
Internet TLD
Generic top-level domain
.com, .org, .net, .edu, .gov, .mil
ccTLD (generally not used in the U.S.)
.us, .pr, .as, .gu, .mp, .vi and, formerly, .um (removed by ICANN in 2008, but still recognized by the U.S. government as a ccTLD)

Source: CIA World Factbook
This page was last updated on November 27, 2020


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