30705 -- U.S. ZIP code Municipality (1990): CHATSWORTH, Georgia All ZIPs for this municipality (1990): 30705 Population (2000): 31636 Housing Units (2000): 12300 Land area (2000): 251.147143 sq. miles (650.468086 sq. km) Water area (2000): 0.140430 sq. miles (0.363712 sq. km) Total area (2000): 251.287573 sq. miles (650.831798 sq. km) Located within: Georgia (GA) Location: 34.753129 N, 84.775026 W