Fairmont, WV -- U.S. city in West Virginia Population (2000): 19097 Housing Units (2000): 9755 Land area (2000): 7.831405 sq. miles (20.283244 sq. km) Water area (2000): 0.360710 sq. miles (0.934234 sq. km) Total area (2000): 8.192115 sq. miles (21.217478 sq. km) FIPS code: 26452 Located within: West Virginia (WV), FIPS 54 Location: 39.481253 N, 80.143453 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Fairmont, WV Fairmont