385.8 sq mi (999.3 sq km ) is the area of the city namedDallas, Texas . The water area of the city is 45.3 sq mi (117.4 sq km) . The area of the urban region is 1,407.2 sq mi (3,645 sq km) . Dallas, Texas is at an elevation of 430 ft . The land area of the city is 340.5 sq mi (881.9 sq km)
Dallas, Texas is 56 ftabove sea level