Illinois Counties

There are 102 counties in the State of Illinois. The Illinois Statutes provide for three types of county government: counties under township organization (84), counties under commission form (17), and counties under executive form  (1). Cook County is the only home rule county in Illinois.

County County Seat District Phone Website
Adams Quincy Township (217) 277-2150
Alexander Cairo Commission (618) 734-7000  
Bond Greenville Township (618) 664-0449
Boone Belvidere Township (815) 544-3103
Brown Mount Sterling Township (217) 773-3421  
Bureau Princeton Township (815) 875-2014
Calhoun Hardin Commission (618) 576-2351  
Carroll Mount Carroll Township (815) 244-0221
Cass Virginia Township (217) 452-2277  
Champaign Urbana Township (217) 384-3720
Christian Taylorville Township (217) 824-4969
Clark Marshall Township (217) 826-8311
Clay Louisville Township (618) 665-3626
Clinton Carlyle Township (618) 594-2462
Coles Charleston Township (217) 348-0501
Cook Chicago Township (312) 443-5500
Crawford Robinson Township (618) 546-1212
Cumberland Toledo Township (217) 849-2631  
Dekalb Sycamore Township (815) 895-7149
Dewitt Clinton Township (217) 935-2119  
Douglas Tuscola Township (217) 253-2411
DuPage Wheaton Township (630) 407-5500
Edgar Paris Township (217) 466-7433
Edwards Albion Commission (618) 445-2115  
Effingham Effingham Township (217) 342-6535
Fayette Vandalia Township (618) 283-5000  
Ford Paxton Township (217) 379-2721
Franklin Benton Township (618) 438-3221
Fulton Lewistown Township (309) 547-3041
Gallatin Shawneetown Township (618) 269-3025  
Greene Carrollton Township (217) 942-5443  
Grundy Morris Township (815) 941-3222
Hamilton McLeansboro Township (618) 643-2721  
Hancock Carthage Township (217) 357-3911
Hardin Elizabethtown Commission (618) 287-2251  
Henderson Oquawka Township (309) 867-2911  
Henry Cambridge Township (309) 937-3575  
Iroquois Watseka Township (815) 432-6960
Jackson Murphysboro Township (618) 687-7360
Jasper Newton Township (618) 783-3124  
Jefferson Mount Vernon Township (618) 244-8020
Jersey Jerseyville Township (618) 498-5571
Jo Daviess Galena Township (815) 777-0161
Johnson Vienna Commission (618) 658-3611  
Kane Geneva Township (630) 232-5990
Kankakee Kankakee Township (815) 937-2990
Kendall Yorkville Township (630) 553-4104
Knox Galesburg Township (309) 345-3815
Lake Waukegan Township (847) 377-2308
LaSalle Ottawa Township (815) 434-8202
Lawrence Lawrenceville Township (618) 943-2346  
Lee Dixon Township (815) 288-3309
Livingston Pontiac Township (815) 844-2006
Logan Lincoln Township (217) 732-4148
Macon Decatur Township (217) 424-1305
Macoupin Carlinville Township (217) 854-3214
Madison Edwardsville Township (618) 692-6290
Marion Salem Township (618) 548-3400  
Marshall Lacon Township (309) 246-6325
Mason Havana Township (309) 543-6661
Massac Metropolis Commission (618) 524-5213  
McDonough Macomb Township (309) 833-2474
McHenry Woodstock Township (815) 334-4242
McLean Bloomington Township (309) 888-5190
Menard Petersburg Commission (217) 632-3201
Mercer Aledo Township (309) 582-7021
Monroe Waterloo Commission (618) 939-8681
Montgomery Hillsboro Township (217) 532-9530
Morgan Jacksonville Commission (217) 243-8581
Moultrie Sullivan Township (217) 728-4389
Ogle Oregan Township (815) 732-1110
Peoria Peoria Township (309) 672-6070
Perry Pickneyville Commission (618) 357-5116
Piatt Monticello Township (217) 762-9487
Pike Pittsfield Township (217) 285-6812  
Pope Golconda Commission (618) 683-4466
Pulaski Mound City Commission (618) 748-9360  
Putnam Hennepin Township (815) 925-7129  
Randolph Chester Commission (618) 826-5000
Richland Olney Township (618) 392-3111  
Rock Island Rock Island Township (309) 558-3555
Saline Harrisburg Township (618) 253-8197
Sangamon Springfield Township (217) 753-6740
Schuyler Rushville Township (217) 322-4734
Scott Winchester Commission (217) 742-3178  
Shelby Shelbyville Township (217) 774-4421  
St. Clair Belleville Township (618) 277-6600
Stark Toulon Township (309) 286-5911
Stephenson Freeport Township (815) 235-8289
Tazewell Pekin Township (309) 477-2264
Union Jonesboro Commission (618) 833-5711
Vermilion Danville Township (217) 554-1900
Wabash Mount Carmel Commission (618) 262-4561  
Warren Monmouth Township (309) 734-4612
Washington Nashville Township (618) 327-4800
Wayne Fairfield Township (618) 842-5182  
White Carmi Township (618) 382-7211
Whiteside Morrison Township (815) 772-5189
Will Joliet Executive (815) 740-4615
Williamson Marion Williamson (618) 997-1301
Winnebago Rockford Township (815) 319-4250
Woodford Eureka Township (309) 467-2822