33924 -- U.S. ZIP code Municipality (1990): CAPTIVA, Florida All ZIPs for this municipality (1990): 33924 Population (2000): 339 Housing Units (2000): 1088 Land area (2000): 1.568408 sq. miles (4.062157 sq. km) Water area (2000): 0.017630 sq. miles (0.045661 sq. km) Total area (2000): 1.586038 sq. miles (4.107818 sq. km) Located within: Florida (FL) Location: 26.519415 N, 82.191011 W