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The area of the District of Columbia is 68 square miles = 1,895,731,200 square feet."Long" is an adjective used with distance, not with area.
The 50 states and District of Columbia have land area of 3,531,905 square miles and total area including water of 3,796,742 square miles. The contiguous U.S. has land area of 2,954,841 square miles and total area including water of 3,120,426 square miles.
The 50 U.S. states and District of Columbia have land area of 9,147,593 square miles. The contiguous U.S. is 2,954,841 square miles.
The Lake District is a national park, and it is located in England. It has an area of 885 square miles.
Pittsburgh, PA has a total area of 37,312 acres.
The seaside district of Pontian is located in Malaysia. The total area of Pontian is 350 square miles with a population density of 160 people per square mile.
The 50 U.S. states and District of Columbia have land area of 3,531,905 square miles. The contiguous U.S. states have 2,954,841 square miles.
The area of Ustyansky District is 10,700 square kilometers.
Rudgwick is a village located in the Horsham District of West Sussex, England. The exact area of Rudgwick in square kilometers or square miles is not readily available.
The area of Son Dong District is 844 square kilometers.
The area of Binh Thanh District is 20.8 square kilometers.
The area of Tay Son District is 690 square kilometers.