Counties, Regions & Areas

COUNTY → REGION

Adams: 1
Alexander: 30
Bond: 3
Boone: 4
Brown: 1
Bureau: 28
Calhoun: 40
Carroll: 8
Cass: 1
Champaign: 9
Christian: 3
Clark: 11
Clay: 12
Clinton: 13
Coles: 11
Cook (City of Chicago): 1-A
Cook (West): 1-B-B
Cook (South): 1-B-C
Cook (North): 1-B-D
Crawford: 12
Cumberland: 11
DeKalb: 16
DeWitt: 17
Douglas: 11
DuPage: 19
Edgar: 11
Edwards: 20

Effingham: 3
Fayette: 3
Ford: 9
Franklin: 21
Fulton: 26
Gallatin: 20
Greene: 40
Grundy: 24
Hamilton: 20
Hancock: 26
Hardin: 20
Henderson: 33
Henry: 28
Iroquois: 32
Jackson: 30
Jasper: 12
Jefferson: 13
Jersey: 40
Jo Daviess: 8
Johnson: 21
Kane: 31
Kankakee: 32
Kendall: 24
Knox: 33
Lake: 34
LaSalle: 35
Lawrence: 12

Lee: 47
Livingston: 17
Logan: 17
Macon: 39
Macoupin: 40
Madison: 41
Marion: 13
Marshall: 35
Mason: 53
Massac: 21
McDonough: 26
McHenry: 44
McLean: 17
Menard: 51
Mercer: 33
Monroe: 45
Montgomery: 3
Morgan: 1
Moultrie: 11
Ogle: 47
Peoria: 48
Perry: 30
Piatt: 39
Pike: 1
Pope: 20
Pulaski: 30
Putnam: 35

Randolph: 45
Richland: 12
Rock Island: 49
Saline: 20
Sangamon: 51
Schuyler: 26
Scott: 1
Shelby: 11
St. Clair: 50
Stark: 28
Stephenson: 8
Tazewell: 53
Union: 30
Vermilion: 54
Wabash: 20
Warren: 33
Washington: 13
Wayne: 20
White: 20
Whiteside: 47
Will: 56
Williamson: 21
Winnebago: 4
Woodford: 53

REGION → COUNTIES

a map of Illinois with all the Region numbers and counties listed

COOK COUNTY DETAILS

Cook (City of Chicago) - 1-A

Cook (North) - 1-B-D
Arlington Heights, Buffalo Grove, Burnham, Des Plaines, Elk Grove Village, Evanston, Glencoe, Glenview, Hanover Park, Hoffman Estates, Kenilworth, Lincolnwood, Morton Grove, Niles, Northbrook, Northfield, Palatine, Park Ridge, Prospect Heights, Rolling Meadows, Roselle, Schaumburg, Skokie, South Barrington, Wheeling, Wilmette, Winnetka

Cook (South) - 1-B-C
Alsip, Bedford Park, Blue Island, Bridgeview, Burbank, Burnham, Calumet City, Calumet Park, Chicago Heights, Chicago Ridge, Country Club Hills, Crestwood, Dixmoor, Dolton, Evergreen Park, Flossmoor, Ford Heights, Glenwood, Harvey, Hazel Crest, Hickory Hills, Hometown, Homewood, Justice, Lansing, Lemont, Lynwood, Markham, Matteson, Merrionette Park, Midlothian, Oak Forest, Oak Lawn, Orland Park, Palos Heights, Palos Hills, Park Forest, Phoenix, Posen, Richton Park, Riverdale, Robbins, Sauk Village, South Chicago Heights, South Holland, Steger, Streamwood, Summit, Thornton, Tinley Park, Willow Springs, Worth

Cook (West) - 1-B-B
Bellwood, Berkeley, Berwyn, Broadview, Brookfield, Burr Ridge, Cicero, Countryside, Elmwood, Forest Park, Franklin Park, Harwood Heights, Hillside, Hines, Hodgkins, La Grange, La Grange Highlands, La Grange Park, Lyons, Maywood, McCook, Melrose Park, Norridge, North Riverside, Northlake, Oak Park, River Forest, River Grove, Riverside, Rosemont, Schiller Park, Stickney, Stone Park, Westchester, Western Springs