33036 -- U.S. ZIP code Municipality (1990): ISLAMORADA, Florida All ZIPs for this municipality (1990): 33036 Population (2000): 3485 Housing Units (2000): 3327 Land area (2000): 7.232883 sq. miles (18.733081 sq. km) Water area (2000): 0.248993 sq. miles (0.644890 sq. km) Total area (2000): 7.481876 sq. miles (19.377971 sq. km) Located within: Florida (FL) Location: 24.918280 N, 80.636766 W