33455 -- U.S. ZIP code Municipality (1990): HOBE SOUND, Florida All ZIPs for this municipality (1990): 33455 Population (2000): 16513 Housing Units (2000): 9117 Land area (2000): 34.273251 sq. miles (88.767309 sq. km) Water area (2000): 0.516983 sq. miles (1.338980 sq. km) Total area (2000): 34.790234 sq. miles (90.106289 sq. km) Located within: Florida (FL) Location: 27.076516 N, 80.146976 W