31735 -- U.S. ZIP code Municipality (1990): COBB, Georgia All ZIPs for this municipality (1990): 31735 Population (2000): 918 Housing Units (2000): 679 Land area (2000): 29.564999 sq. miles (76.572993 sq. km) Water area (2000): 0.160411 sq. miles (0.415463 sq. km) Total area (2000): 29.725410 sq. miles (76.988456 sq. km) Located within: Georgia (GA) Location: 31.959367 N, 83.960287 W