31903 -- U.S. ZIP code Municipality (1990): COLUMBUS, Georgia All ZIPs for this municipality (1990): 31901 31903 31904 31906 31907 31909 Population (2000): 22588 Housing Units (2000): 10356 Land area (2000): 10.347841 sq. miles (26.800785 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 10.347841 sq. miles (26.800785 sq. km) Located within: Georgia (GA) Location: 32.423311 N, 84.948793 W