30755 -- U.S. ZIP code Municipality (1990): TUNNEL HILL, Georgia All ZIPs for this municipality (1990): 30755 Population (2000): 8836 Housing Units (2000): 3434 Land area (2000): 34.330830 sq. miles (88.916439 sq. km) Water area (2000): 0.099312 sq. miles (0.257216 sq. km) Total area (2000): 34.430142 sq. miles (89.173655 sq. km) Located within: Georgia (GA) Location: 34.859730 N, 85.038679 W