Frontier, ND -- U.S. city in North Dakota Population (2000): 273 Housing Units (2000): 78 Land area (2000): 0.179313 sq. miles (0.464419 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.179313 sq. miles (0.464419 sq. km) FIPS code: 28720 Located within: North Dakota (ND), FIPS 38 Location: 46.800343 N, 96.833370 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Frontier, ND Frontier