Marmarth, ND -- U.S. city in North Dakota Population (2000): 140 Housing Units (2000): 101 Land area (2000): 2.534711 sq. miles (6.564872 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.534711 sq. miles (6.564872 sq. km) FIPS code: 50860 Located within: North Dakota (ND), FIPS 38 Location: 46.294693 N, 103.923037 W ZIP Codes (1990): 58643 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marmarth, ND Marmarth