Iona, FL -- U.S. Census Designated Place in Florida Population (2000): 11756 Housing Units (2000): 9290 Land area (2000): 7.131203 sq. miles (18.469731 sq. km) Water area (2000): 3.077167 sq. miles (7.969826 sq. km) Total area (2000): 10.208370 sq. miles (26.439557 sq. km) FIPS code: 34012 Located within: Florida (FL), FIPS 12 Location: 26.510425 N, 81.958940 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Iona, FL Iona