Marietta, MN -- U.S. city in Minnesota Population (2000): 174 Housing Units (2000): 109 Land area (2000): 0.390811 sq. miles (1.012196 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.390811 sq. miles (1.012196 sq. km) FIPS code: 40526 Located within: Minnesota (MN), FIPS 27 Location: 45.011241 N, 96.418339 W ZIP Codes (1990): 56257 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marietta, MN Marietta