30120 -- U.S. ZIP code Municipality (1990): CARTERSVILLE, Georgia All ZIPs for this municipality (1990): 30120 Population (2000): 29734 Housing Units (2000): 11326 Land area (2000): 96.784945 sq. miles (250.671845 sq. km) Water area (2000): 0.480884 sq. miles (1.245485 sq. km) Total area (2000): 97.265829 sq. miles (251.917330 sq. km) Located within: Georgia (GA) Location: 34.167327 N, 84.827641 W