31749 -- U.S. ZIP code Municipality (1990): ENIGMA, Georgia All ZIPs for this municipality (1990): 31749 Population (2000): 2075 Housing Units (2000): 859 Land area (2000): 66.323997 sq. miles (171.778357 sq. km) Water area (2000): 1.628048 sq. miles (4.216625 sq. km) Total area (2000): 67.952045 sq. miles (175.994982 sq. km) Located within: Georgia (GA) Location: 31.439212 N, 83.340417 W