Marianna, FL -- U.S. city in Florida Population (2000): 6230 Housing Units (2000): 2764 Land area (2000): 8.027774 sq. miles (20.791839 sq. km) Water area (2000): 0.028730 sq. miles (0.074411 sq. km) Total area (2000): 8.056504 sq. miles (20.866250 sq. km) FIPS code: 43175 Located within: Florida (FL), FIPS 12 Location: 30.776370 N, 85.238149 W ZIP Codes (1990): 32446 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Marianna, FL Marianna