30075 -- U.S. ZIP code Municipality (1990): ROSWELL, Georgia All ZIPs for this municipality (1990): 30075 30076 Population (2000): 46231 Housing Units (2000): 17018 Land area (2000): 29.363518 sq. miles (76.051160 sq. km) Water area (2000): 0.328453 sq. miles (0.850689 sq. km) Total area (2000): 29.691971 sq. miles (76.901849 sq. km) Located within: Georgia (GA) Location: 34.049789 N, 84.385397 W