| County Name |
# of Members |
|
Adams County
Adams County
|
17,995 |
|
Alexander County
Alexander County
|
966 |
|
Bond County
Bond County
|
4,940 |
|
Boone County
Boone County
|
11,639 |
|
Brown County
Brown County
|
570 |
|
Bureau County
Bureau County
|
6,107 |
|
Calhoun County
Calhoun County
|
1,142 |
|
Carroll County
Carroll County
|
8,696 |
|
Cass County
Cass County
|
2,971 |
|
Champaign County
Champaign County
|
66,733 |
|
Christian County
Christian County
|
18,605 |
|
Clark County
Clark County
|
2,267 |
|
Clay County
Clay County
|
1,977 |
|
Clinton County
Clinton County
|
15,543 |
|
Coles County
Coles County
|
11,939 |
|
Cook County
Cook County
|
784,587 |
|
Crawford County
Crawford County
|
2,586 |
|
Cumberland County
Cumberland County
|
1,945 |
|
DeKalb County
DeKalb County
|
29,185 |
|
De Witt County
De Witt County
|
5,749 |
|
Douglas County
Douglas County
|
4,405 |
|
DuPage County
DuPage County
|
146,858 |
|
Edgar County
Edgar County
|
3,145 |
|
Edwards County
Edwards County
|
1,335 |
|
Effingham County
Effingham County
|
6,472 |
|
Fayette County
Fayette County
|
5,656 |
|
Ford County
Ford County
|
3,413 |
|
Franklin County
Franklin County
|
10,645 |
|
Fulton County
Fulton County
|
12,634 |
|
Gallatin County
Gallatin County
|
1,515 |
|
Greene County
Greene County
|
3,187 |
|
Grundy County
Grundy County
|
13,235 |
|
Hamilton County
Hamilton County
|
2,014 |
|
Hancock County
Hancock County
|
2,494 |
|
Hardin County
Hardin County
|
851 |
|
Henderson County
Henderson County
|
1,110 |
|
Henry County
Henry County
|
27,685 |
|
Iroquois County
Iroquois County
|
5,390 |
|
Jackson County
Jackson County
|
22,031 |
|
Jasper County
Jasper County
|
1,200 |
|
Jefferson County
Jefferson County
|
13,117 |
|
Jersey County
Jersey County
|
11,197 |
|
Jo Daviess County
Jo Daviess County
|
10,705 |
|
Johnson County
Johnson County
|
4,497 |
|
Kane County
Kane County
|
90,158 |
|
Kankakee County
Kankakee County
|
37,679 |
|
Kendall County
Kendall County
|
28,952 |
|
Knox County
Knox County
|
19,239 |
|
Lake County
Lake County
|
220,749 |
|
LaSalle County
LaSalle County
|
41,319 |
|
Lawrence County
Lawrence County
|
5,453 |
|
Lee County
Lee County
|
9,769 |
|
Livingston County
Livingston County
|
7,398 |
|
Logan County
Logan County
|
13,278 |
|
McDonough County
McDonough County
|
6,990 |
|
McHenry County
McHenry County
|
70,569 |
|
McLean County
McLean County
|
86,238 |
|
Macon County
Macon County
|
74,216 |
|
Macoupin County
Macoupin County
|
16,825 |
|
Madison County
Madison County
|
158,695 |
|
Marion County
Marion County
|
15,285 |
|
Marshall County
Marshall County
|
4,051 |
|
Mason County
Mason County
|
4,439 |
|
Massac County
Massac County
|
4,942 |
|
Menard County
Menard County
|
4,199 |
|
Mercer County
Mercer County
|
9,329 |
|
Monroe County
Monroe County
|
15,157 |
|
Montgomery County
Montgomery County
|
10,603 |
|
Morgan County
Morgan County
|
6,528 |
|
Moultrie County
Moultrie County
|
4,475 |
|
Ogle County
Ogle County
|
15,091 |
|
Peoria County
Peoria County
|
88,271 |
|
Perry County
Perry County
|
5,347 |
|
Piatt County
Piatt County
|
6,027 |
|
Pike County
Pike County
|
1,874 |
|
Pope County
Pope County
|
1,174 |
|
Pulaski County
Pulaski County
|
1,316 |
|
Putnam County
Putnam County
|
1,289 |
|
Randolph County
Randolph County
|
7,061 |
|
Richland County
Richland County
|
2,161 |
|
Rock Island County
Rock Island County
|
116,438 |
|
St. Clair County
St. Clair County
|
140,301 |
|
Saline County
Saline County
|
7,276 |
|
Sangamon County
Sangamon County
|
84,796 |
|
Schuyler County
Schuyler County
|
1,045 |
|
Scott County
Scott County
|
815 |
|
Shelby County
Shelby County
|
5,766 |
|
Stark County
Stark County
|
1,597 |
|
Stephenson County
Stephenson County
|
11,797 |
|
Tazewell County
Tazewell County
|
70,447 |
|
Union County
Union County
|
4,112 |
|
Vermilion County
Vermilion County
|
39,670 |
|
Wabash County
Wabash County
|
3,590 |
|
Warren County
Warren County
|
3,907 |
|
Washington County
Washington County
|
5,052 |
|
Wayne County
Wayne County
|
2,648 |
|
White County
White County
|
3,609 |
|
Whiteside County
Whiteside County
|
27,637 |
|
Will County
Will County
|
106,269 |
|
Williamson County
Williamson County
|
26,389 |
|
Winnebago County
Winnebago County
|
72,688 |
|
Woodford County
Woodford County
|
17,312 |
|
3,160,240 |