Charlestown, IN -- U.S. city in Indiana Population (2000): 5993 Housing Units (2000): 2489 Land area (2000): 2.331917 sq. miles (6.039637 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.331917 sq. miles (6.039637 sq. km) FIPS code: 12124 Located within: Indiana (IN), FIPS 18 Location: 38.451984 N, 85.667224 W ZIP Codes (1990): 47111 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Charlestown, IN Charlestown