Hanahan, SC -- U.S. city in South Carolina Population (2000): 12937 Housing Units (2000): 5698 Land area (2000): 10.069918 sq. miles (26.080966 sq. km) Water area (2000): 0.624809 sq. miles (1.618249 sq. km) Total area (2000): 10.694727 sq. miles (27.699215 sq. km) FIPS code: 32065 Located within: South Carolina (SC), FIPS 45 Location: 32.916950 N, 79.995947 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Hanahan, SC Hanahan