Tiffin, IA -- U.S. city in Iowa Population (2000): 975 Housing Units (2000): 457 Land area (2000): 2.989005 sq. miles (7.741486 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.989005 sq. miles (7.741486 sq. km) FIPS code: 78060 Located within: Iowa (IA), FIPS 19 Location: 41.706432 N, 91.661471 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Tiffin, IA Tiffin