Ketchum, ID -- U.S. city in Idaho Population (2000): 3003 Housing Units (2000): 2920 Land area (2000): 3.029169 sq. miles (7.845511 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.029169 sq. miles (7.845511 sq. km) FIPS code: 43030 Located within: Idaho (ID), FIPS 16 Location: 43.681170 N, 114.371565 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ketchum, ID Ketchum