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  1. Together, the 48 contiguous states and D.C. have an area of 3,119,884.69square miles (8,080,464.25 km²). Of this, 2,959,064.44 sq mi (7,663,941.71km²) is land, comprising 83.65% of U.S. land area. Officially,160,820.25 sq mi (416,522.38 km²) is water area, comprising 62.66% of the nation's water area. (Princeton University)
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11y ago

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