Clark Fork, ID -- U.S. city in Idaho Population (2000): 530 Housing Units (2000): 286 Land area (2000): 0.983682 sq. miles (2.547725 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.983682 sq. miles (2.547725 sq. km) FIPS code: 14950 Located within: Idaho (ID), FIPS 16 Location: 48.147180 N, 116.178270 W ZIP Codes (1990): 83811 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Clark Fork, ID Clark Fork