Grafton, ND -- U.S. city in North Dakota Population (2000): 4516 Housing Units (2000): 2005 Land area (2000): 3.441483 sq. miles (8.913400 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.441483 sq. miles (8.913400 sq. km) FIPS code: 31820 Located within: North Dakota (ND), FIPS 38 Location: 48.416082 N, 97.410633 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Grafton, ND Grafton