| County Name |
# of Members |
|
Adams County
Adams County
|
16,988 |
|
Alexander County
Alexander County
|
972 |
|
Bond County
Bond County
|
4,786 |
|
Boone County
Boone County
|
11,067 |
|
Brown County
Brown County
|
541 |
|
Bureau County
Bureau County
|
7,067 |
|
Calhoun County
Calhoun County
|
1,124 |
|
Carroll County
Carroll County
|
6,516 |
|
Cass County
Cass County
|
2,846 |
|
Champaign County
Champaign County
|
64,844 |
|
Christian County
Christian County
|
18,456 |
|
Clark County
Clark County
|
2,233 |
|
Clay County
Clay County
|
1,946 |
|
Clinton County
Clinton County
|
15,361 |
|
Coles County
Coles County
|
11,785 |
|
Cook County
Cook County
|
714,921 |
|
Crawford County
Crawford County
|
2,574 |
|
Cumberland County
Cumberland County
|
1,933 |
|
DeKalb County
DeKalb County
|
27,640 |
|
De Witt County
De Witt County
|
5,690 |
|
Douglas County
Douglas County
|
4,392 |
|
DuPage County
DuPage County
|
139,061 |
|
Edgar County
Edgar County
|
3,083 |
|
Edwards County
Edwards County
|
1,324 |
|
Effingham County
Effingham County
|
6,317 |
|
Fayette County
Fayette County
|
5,568 |
|
Ford County
Ford County
|
3,711 |
|
Franklin County
Franklin County
|
10,512 |
|
Fulton County
Fulton County
|
12,236 |
|
Gallatin County
Gallatin County
|
1,502 |
|
Greene County
Greene County
|
3,118 |
|
Grundy County
Grundy County
|
15,106 |
|
Hamilton County
Hamilton County
|
2,035 |
|
Hancock County
Hancock County
|
2,436 |
|
Hardin County
Hardin County
|
852 |
|
Henderson County
Henderson County
|
1,080 |
|
Henry County
Henry County
|
25,820 |
|
Iroquois County
Iroquois County
|
5,471 |
|
Jackson County
Jackson County
|
21,710 |
|
Jasper County
Jasper County
|
1,189 |
|
Jefferson County
Jefferson County
|
13,037 |
|
Jersey County
Jersey County
|
11,047 |
|
Jo Daviess County
Jo Daviess County
|
10,336 |
|
Johnson County
Johnson County
|
4,467 |
|
Kane County
Kane County
|
69,889 |
|
Kankakee County
Kankakee County
|
37,874 |
|
Kendall County
Kendall County
|
27,522 |
|
Knox County
Knox County
|
19,149 |
|
Lake County
Lake County
|
215,628 |
|
LaSalle County
LaSalle County
|
56,145 |
|
Lawrence County
Lawrence County
|
5,402 |
|
Lee County
Lee County
|
9,385 |
|
Livingston County
Livingston County
|
15,497 |
|
Logan County
Logan County
|
12,702 |
|
McDonough County
McDonough County
|
6,914 |
|
McHenry County
McHenry County
|
67,326 |
|
McLean County
McLean County
|
86,612 |
|
Macon County
Macon County
|
74,116 |
|
Macoupin County
Macoupin County
|
16,394 |
|
Madison County
Madison County
|
151,898 |
|
Marion County
Marion County
|
15,026 |
|
Marshall County
Marshall County
|
4,565 |
|
Mason County
Mason County
|
4,305 |
|
Massac County
Massac County
|
4,865 |
|
Menard County
Menard County
|
4,098 |
|
Mercer County
Mercer County
|
8,472 |
|
Monroe County
Monroe County
|
15,055 |
|
Montgomery County
Montgomery County
|
10,393 |
|
Morgan County
Morgan County
|
6,312 |
|
Moultrie County
Moultrie County
|
4,458 |
|
Ogle County
Ogle County
|
13,637 |
|
Peoria County
Peoria County
|
84,352 |
|
Perry County
Perry County
|
5,299 |
|
Piatt County
Piatt County
|
5,878 |
|
Pike County
Pike County
|
1,828 |
|
Pope County
Pope County
|
1,160 |
|
Pulaski County
Pulaski County
|
1,294 |
|
Putnam County
Putnam County
|
1,597 |
|
Randolph County
Randolph County
|
7,006 |
|
Richland County
Richland County
|
2,150 |
|
Rock Island County
Rock Island County
|
105,977 |
|
St. Clair County
St. Clair County
|
138,905 |
|
Saline County
Saline County
|
7,190 |
|
Sangamon County
Sangamon County
|
82,784 |
|
Schuyler County
Schuyler County
|
993 |
|
Scott County
Scott County
|
798 |
|
Shelby County
Shelby County
|
5,694 |
|
Stark County
Stark County
|
1,581 |
|
Stephenson County
Stephenson County
|
11,581 |
|
Tazewell County
Tazewell County
|
66,672 |
|
Union County
Union County
|
4,114 |
|
Vermilion County
Vermilion County
|
38,611 |
|
Wabash County
Wabash County
|
3,547 |
|
Warren County
Warren County
|
3,864 |
|
Washington County
Washington County
|
4,999 |
|
Wayne County
Wayne County
|
2,670 |
|
White County
White County
|
3,586 |
|
Whiteside County
Whiteside County
|
23,178 |
|
Will County
Will County
|
102,653 |
|
Williamson County
Williamson County
|
26,000 |
|
Winnebago County
Winnebago County
|
69,743 |
|
Woodford County
Woodford County
|
17,131 |
|
3,021,174 |