Port St. Joe, FL -- U.S. city in Florida Population (2000): 3644 Housing Units (2000): 1571 Land area (2000): 3.320722 sq. miles (8.600631 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.320722 sq. miles (8.600631 sq. km) FIPS code: 58675 Located within: Florida (FL), FIPS 12 Location: 29.807968 N, 85.297684 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Port St. Joe, FL Port St. Joe