30720 -- U.S. ZIP code Municipality (1990): DALTON, Georgia All ZIPs for this municipality (1990): 30720 30721 Population (2000): 24892 Housing Units (2000): 9641 Land area (2000): 57.604610 sq. miles (149.195248 sq. km) Water area (2000): 0.196847 sq. miles (0.509832 sq. km) Total area (2000): 57.801457 sq. miles (149.705080 sq. km) Located within: Georgia (GA) Location: 34.766095 N, 84.986507 W