Berkeley
ZIP Code(s): 60163; County(s): Cook;
Illinois
Marseilles
ZIP Code(s): 61341; County(s): LaSalle;
West City
ZIP Code(s): 62812; County(s): Franklin;
Crystal Lake
ZIP Code(s): 60014, 60012, 60039; County(s): McHenry;
Vernon Hills
ZIP Code(s): 60061; County(s): Lake;
Dalton City
ZIP Code(s): 61925; County(s): Moultrie;
Forsyth
ZIP Code(s): 62526, 62535; County(s): Macon;
Port Barrington
ZIP Code(s): 60010; County(s): McHenry, Lake;
Mound City
ZIP Code(s): 62963; County(s): Pulaski;
Rockford
ZIP Code(s): 61114, 61109, 61108, 61104, 61107, 61101, 61103, 61102, 61105, 61106, 61110, 61125, 61126; County(s): Winnebago;
Arlington Heights
ZIP Code(s): 60005, 60004; County(s): Cook;
Livingston
ZIP Code(s): 62058; County(s): Madison;
Brookfield
ZIP Code(s): 60513; County(s): Cook;
Prairie Grove
ZIP Code(s): 60014, 60012, 60050; County(s): McHenry;
Wataga
ZIP Code(s): 61488; County(s): Knox;
Griggsville
ZIP Code(s): 62340; County(s): Pike;
Pecatonica
ZIP Code(s): 61063; County(s): Winnebago;
Essex
ZIP Code(s): 60935; County(s): Kankakee;
Lincolnwood
ZIP Code(s): 60712; County(s): Cook;
Danforth
ZIP Code(s): 60930; County(s): Iroquois;