34684 -- U.S. ZIP code Municipality (1990): LAKE TARPON, Florida All ZIPs for this municipality (1990): 34684 Population (2000): 27429 Housing Units (2000): 13779 Land area (2000): 6.426163 sq. miles (16.643686 sq. km) Water area (2000): 0.122887 sq. miles (0.318276 sq. km) Total area (2000): 6.549050 sq. miles (16.961962 sq. km) Located within: Florida (FL) Location: 28.081325 N, 82.727512 W