Magnolia, IA -- U.S. city in Iowa Population (2000): 200 Housing Units (2000): 96 Land area (2000): 0.582670 sq. miles (1.509108 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.582670 sq. miles (1.509108 sq. km) FIPS code: 48495 Located within: Iowa (IA), FIPS 19 Location: 41.694404 N, 95.873516 W ZIP Codes (1990): 51550 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Magnolia, IA Magnolia