Barnum, MN -- U.S. city in Minnesota Population (2000): 525 Housing Units (2000): 249 Land area (2000): 1.010145 sq. miles (2.616263 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.010145 sq. miles (2.616263 sq. km) FIPS code: 03628 Located within: Minnesota (MN), FIPS 27 Location: 46.504192 N, 92.690427 W ZIP Codes (1990): 55707 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Barnum, MN Barnum