33931 -- U.S. ZIP code Municipality (1990): FORT MYERS BEACH, Florida All ZIPs for this municipality (1990): 33931 Population (2000): 10461 Housing Units (2000): 12500 Land area (2000): 8.570719 sq. miles (22.198059 sq. km) Water area (2000): 0.076135 sq. miles (0.197189 sq. km) Total area (2000): 8.646854 sq. miles (22.395248 sq. km) Located within: Florida (FL) Location: 26.446463 N, 81.932693 W