31904 -- U.S. ZIP code Municipality (1990): COLUMBUS, Georgia All ZIPs for this municipality (1990): 31901 31903 31904 31906 31907 31909 Population (2000): 30068 Housing Units (2000): 13192 Land area (2000): 26.056679 sq. miles (67.486487 sq. km) Water area (2000): 0.331137 sq. miles (0.857641 sq. km) Total area (2000): 26.387816 sq. miles (68.344128 sq. km) Located within: Georgia (GA) Location: 32.513391 N, 84.977531 W