30265 -- U.S. ZIP code Municipality (1990): NEWNAN, Georgia All ZIPs for this municipality (1990): 30265 Population (2000): 18138 Housing Units (2000): 6721 Land area (2000): 46.596158 sq. miles (120.683489 sq. km) Water area (2000): 0.212033 sq. miles (0.549162 sq. km) Total area (2000): 46.808191 sq. miles (121.232651 sq. km) Located within: Georgia (GA) Location: 33.400875 N, 84.712062 W