31775 -- U.S. ZIP code Municipality (1990): OMEGA, Georgia All ZIPs for this municipality (1990): 31775 Population (2000): 2977 Housing Units (2000): 1090 Land area (2000): 51.318120 sq. miles (132.913316 sq. km) Water area (2000): 0.518429 sq. miles (1.342726 sq. km) Total area (2000): 51.836549 sq. miles (134.256042 sq. km) Located within: Georgia (GA) Location: 31.334062 N, 83.599710 W