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United States of America

Political Status: Independence declared on July 4, 1776; federal republic established under constitution adopted on March 4, 1789.

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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: 327,859,492 (2012E—UN); 313,847,465 (2012E—U.S. Census). Does not include the U.S. Territories.

Major Urban Centers (2008E):

City Proper

Population

Metro Area

Washington, D.C.

591,000

5,353,000

New York, N.Y.

8,299,000

18,819,000

Los Angeles, Calif.

3,849,000

12,885,000

Chicago, Ill.

2,845,000

9,592,000

Houston, Texas

2,244,000

5,751,000

Phoenix, Ariz.

1,588,000

4,315,000

Philadelphia, Pa.

1,528,000

5,845,000

San Antonio, Texas

1,363,000

2,047,000

San Diego, Calif.

1,275,000

3,002,000

Dallas, Texas

1,252,000

6,311,000

Detroit, Mich.

915,000

4,441,000

Jacksonville, Fla.

813,000

1,323,000

Indianapolis, Ind.

798,000

1,720,000

Columbus, Ohio

753,000

1,773,000

San Francisco, Calif.

774,000

4,244,000

Memphis, Tenn.

671,000

1,290,000

Baltimore, Md.

633,000

2,673,000

Seattle, Wash.

603,000

3,357,000

Boston, Mass.

602,000

4,500,000

Milwaukee, Wisc.

601,000

1,547,000

Denver, Colo.

600,000

2,519,000

Kansas City, Mo.

453,000

2,008,000

Cleveland, Ohio

433,000

2,087,000

St. Louis, Mo.

348,000

2,814,000

Pittsburgh, Pa.

308,000

2,329,000

New Orleans, La.

272,000

1,072,000

Principal Language: English. In the 2010 census approximately 80.1 percent spoke only ...

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