Rupert, ID -- U.S. city in Idaho Population (2000): 5645 Housing Units (2000): 2204 Land area (2000): 2.030664 sq. miles (5.259396 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.030664 sq. miles (5.259396 sq. km) FIPS code: 70660 Located within: Idaho (ID), FIPS 16 Location: 42.617967 N, 113.674543 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Rupert, ID Rupert