31527 -- U.S. ZIP code Municipality (1990): JEKYLL ISLAND, Georgia All ZIPs for this municipality (1990): 31527 Population (2000): 938 Housing Units (2000): 972 Land area (2000): 17.304262 sq. miles (44.817831 sq. km) Water area (2000): 0.141820 sq. miles (0.367311 sq. km) Total area (2000): 17.446082 sq. miles (45.185142 sq. km) Located within: Georgia (GA) Location: 31.064190 N, 81.420726 W