Capital | Washington, D.C. 38°53′N 77°01′W |
---|---|
Largest city | New York City 40°43′N 74°00′W |
Official languages | None at the federal level[a] |
National language | English |
Ethnic groups (2020)[8] | By race:
By ethnicity:
|
Religion (2020)[9] |
|
Demonym(s) | American[b][10] |
Government | Federal presidential constitutional republic |
Joe Biden (D) | |
Kamala Harris (D) | |
Nancy Pelosi (D) | |
John Roberts | |
Legislature | Congress |
Senate | |
House of Representatives | |
Independence from Great Britain | |
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)[c][11] (3rd/4th) |
• Water (%) | 4.66 (as of 2015)[12] |
• Total land area | 3,531,905 sq mi (9,147,590 km2) |
Population | |
• 2020 census | ![]() |
• Density | 87/sq mi (33.6/km2) (146th) |
GDP (PPP) | 2021 estimate |
• Total | ![]() |
• Per capita | ![]() |
GDP (nominal) | 2021 estimate |
• Total | ![]() |
• Per capita | ![]() |
Gini (2020) | ![]() high |
HDI (2019) | ![]() very high · 17th |
Currency | United States dollar ($) (USD) |
Time zone | UTC−4 to −12, +10, +11 |
• Summer (DST) | UTC−4 to −10[e] |
Date format |
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Mains electricity | 110–120 V, 60 Hz[17] |
Driving side | right[f] |
Calling code | +1 |
ISO 3166 code | US |
USA
