31796 -- U.S. ZIP code Municipality (1990): WARWICK, Georgia All ZIPs for this municipality (1990): 31796 Population (2000): 1160 Housing Units (2000): 652 Land area (2000): 68.807835 sq. miles (178.211468 sq. km) Water area (2000): 0.029007 sq. miles (0.075128 sq. km) Total area (2000): 68.836842 sq. miles (178.286596 sq. km) Located within: Georgia (GA) Location: 31.782466 N, 83.869738 W