| County Name |
# of Members |
|
Adams County
Adams County
|
18,008 |
|
Alexander County
Alexander County
|
965 |
|
Bond County
Bond County
|
4,819 |
|
Boone County
Boone County
|
11,580 |
|
Brown County
Brown County
|
573 |
|
Bureau County
Bureau County
|
7,157 |
|
Calhoun County
Calhoun County
|
1,131 |
|
Carroll County
Carroll County
|
6,560 |
|
Cass County
Cass County
|
2,959 |
|
Champaign County
Champaign County
|
66,605 |
|
Christian County
Christian County
|
18,619 |
|
Clark County
Clark County
|
2,243 |
|
Clay County
Clay County
|
1,980 |
|
Clinton County
Clinton County
|
15,260 |
|
Coles County
Coles County
|
11,916 |
|
Cook County
Cook County
|
726,384 |
|
Crawford County
Crawford County
|
2,592 |
|
Cumberland County
Cumberland County
|
1,946 |
|
DeKalb County
DeKalb County
|
28,860 |
|
De Witt County
De Witt County
|
5,769 |
|
Douglas County
Douglas County
|
4,410 |
|
DuPage County
DuPage County
|
142,040 |
|
Edgar County
Edgar County
|
3,135 |
|
Edwards County
Edwards County
|
1,325 |
|
Effingham County
Effingham County
|
6,459 |
|
Fayette County
Fayette County
|
5,659 |
|
Ford County
Ford County
|
3,785 |
|
Franklin County
Franklin County
|
10,572 |
|
Fulton County
Fulton County
|
12,709 |
|
Gallatin County
Gallatin County
|
1,507 |
|
Greene County
Greene County
|
3,162 |
|
Grundy County
Grundy County
|
15,189 |
|
Hamilton County
Hamilton County
|
2,021 |
|
Hancock County
Hancock County
|
2,516 |
|
Hardin County
Hardin County
|
852 |
|
Henderson County
Henderson County
|
1,084 |
|
Henry County
Henry County
|
25,906 |
|
Iroquois County
Iroquois County
|
5,556 |
|
Jackson County
Jackson County
|
21,850 |
|
Jasper County
Jasper County
|
1,192 |
|
Jefferson County
Jefferson County
|
13,023 |
|
Jersey County
Jersey County
|
11,047 |
|
Jo Daviess County
Jo Daviess County
|
10,387 |
|
Johnson County
Johnson County
|
4,494 |
|
Kane County
Kane County
|
89,317 |
|
Kankakee County
Kankakee County
|
37,966 |
|
Kendall County
Kendall County
|
28,808 |
|
Knox County
Knox County
|
19,091 |
|
Lake County
Lake County
|
219,478 |
|
LaSalle County
LaSalle County
|
56,383 |
|
Lawrence County
Lawrence County
|
5,437 |
|
Lee County
Lee County
|
9,631 |
|
Livingston County
Livingston County
|
15,591 |
|
Logan County
Logan County
|
13,331 |
|
McDonough County
McDonough County
|
6,972 |
|
McHenry County
McHenry County
|
70,257 |
|
McLean County
McLean County
|
87,547 |
|
Macon County
Macon County
|
74,299 |
|
Macoupin County
Macoupin County
|
16,542 |
|
Madison County
Madison County
|
151,059 |
|
Marion County
Marion County
|
15,166 |
|
Marshall County
Marshall County
|
4,737 |
|
Mason County
Mason County
|
4,459 |
|
Massac County
Massac County
|
4,903 |
|
Menard County
Menard County
|
4,175 |
|
Mercer County
Mercer County
|
8,477 |
|
Monroe County
Monroe County
|
15,013 |
|
Montgomery County
Montgomery County
|
10,535 |
|
Morgan County
Morgan County
|
6,503 |
|
Moultrie County
Moultrie County
|
4,486 |
|
Ogle County
Ogle County
|
14,835 |
|
Peoria County
Peoria County
|
88,591 |
|
Perry County
Perry County
|
5,287 |
|
Piatt County
Piatt County
|
6,028 |
|
Pike County
Pike County
|
1,874 |
|
Pope County
Pope County
|
1,166 |
|
Pulaski County
Pulaski County
|
1,305 |
|
Putnam County
Putnam County
|
1,623 |
|
Randolph County
Randolph County
|
6,908 |
|
Richland County
Richland County
|
2,157 |
|
Rock Island County
Rock Island County
|
105,795 |
|
St. Clair County
St. Clair County
|
138,657 |
|
Saline County
Saline County
|
7,249 |
|
Sangamon County
Sangamon County
|
84,546 |
|
Schuyler County
Schuyler County
|
1,047 |
|
Scott County
Scott County
|
820 |
|
Shelby County
Shelby County
|
5,770 |
|
Stark County
Stark County
|
1,613 |
|
Stephenson County
Stephenson County
|
11,682 |
|
Tazewell County
Tazewell County
|
70,930 |
|
Union County
Union County
|
4,106 |
|
Vermilion County
Vermilion County
|
39,639 |
|
Wabash County
Wabash County
|
3,570 |
|
Warren County
Warren County
|
3,893 |
|
Washington County
Washington County
|
4,986 |
|
Wayne County
Wayne County
|
2,651 |
|
White County
White County
|
3,615 |
|
Whiteside County
Whiteside County
|
23,641 |
|
Will County
Will County
|
103,904 |
|
Williamson County
Williamson County
|
26,262 |
|
Winnebago County
Winnebago County
|
72,324 |
|
Woodford County
Woodford County
|
17,883 |
|
3,090,326 |