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United States
United States of America
Political Status: Independence declared on July 4, 1776; federal republic established under constitution adopted on March 4, 1789.
Area: 3,732,396 sq. mi. (9,666,532 sq. km); includes gross area (land and water) of the 50 states, excluding Puerto Rico and other territories. These totals are somewhat higher than earlier ones because of a 1990 change in the method of calculating interior waters.
Population: 324,119,000 (2016E—UN); 323,995,528 (2016E—U.S. Census). Does not include the U.S. Territories.
Major Urban Centers:
Principal Language: English. In the 2010 census approximately 80.1 percent spoke only English; 12.2 percent Spanish; 7.7 percent other.
Monetary Unit: Dollar (selected market rates October 1, 2016: $1US = 3.26 Brazilian real, 6.67 Chinese yuan renminbi, 0.89 euro, 66.61 Indian rupee, 101.35 Japanese yen, 19.39 Mexican peso, 62.88 Russian ...