Richland, IA -- U.S. city in Iowa Population (2000): 587 Housing Units (2000): 269 Land area (2000): 0.770709 sq. miles (1.996128 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.770709 sq. miles (1.996128 sq. km) FIPS code: 66720 Located within: Iowa (IA), FIPS 19 Location: 41.184899 N, 91.993871 W ZIP Codes (1990): 52585 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Richland, IA Richland