Lockhart, SC -- U.S. town in South Carolina Population (2000): 39 Housing Units (2000): 22 Land area (2000): 0.144224 sq. miles (0.373539 sq. km) Water area (2000): 0.085997 sq. miles (0.222730 sq. km) Total area (2000): 0.230221 sq. miles (0.596269 sq. km) FIPS code: 42190 Located within: South Carolina (SC), FIPS 45 Location: 34.790746 N, 81.459964 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lockhart, SC Lockhart