Fairmont, MN -- U.S. city in Minnesota Population (2000): 10889 Housing Units (2000): 5036 Land area (2000): 14.566569 sq. miles (37.727239 sq. km) Water area (2000): 1.961531 sq. miles (5.080341 sq. km) Total area (2000): 16.528100 sq. miles (42.807580 sq. km) FIPS code: 20330 Located within: Minnesota (MN), FIPS 27 Location: 43.652221 N, 94.458578 W ZIP Codes (1990): 56031 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Fairmont, MN Fairmont