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Illinois County Map
Map and List of All Counties in Illinois
Map of All Counties in Illinois
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List of All Counties in Illinois
Map Key
Name
Population
Adams County
65,737
Alexander County
5,240
Bond County
16,725
Boone County
53,448
Brown County
6,244
Bureau County
33,244
Calhoun County
4,437
Carroll County
15,702
Cass County
13,042
Champaign County
205,865
Christian County
34,032
Clark County
15,455
Clay County
13,288
Clinton County
36,899
Coles County
46,863
Cook County
5,275,541
Crawford County
18,679
Cumberland County
10,450
De Witt County
15,516
DeKalb County
100,420
Douglas County
19,740
DuPage County
932,877
Edgar County
16,866
Edwards County
6,245
Effingham County
34,668
Fayette County
21,488
Ford County
13,534
Franklin County
37,804
Fulton County
33,609
Gallatin County
4,946
Greene County
11,985
Grundy County
52,533
Hamilton County
7,993
Hancock County
17,620
Hardin County
3,649
Henderson County
6,387
Henry County
49,284
Iroquois County
27,077
Jackson County
52,974
Jasper County
9,287
Jefferson County
37,113
Jersey County
21,512
Jo Daviess County
22,035
Johnson County
13,308
Kane County
516,522
Kankakee County
107,502
Kendall County
131,869
Knox County
49,967
Lake County
714,342
LaSalle County
109,658
Lawrence County
15,280
Lee County
34,145
Livingston County
35,815
Logan County
27,987
Macon County
103,998
Macoupin County
44,967
Madison County
265,859
Marion County
37,729
Marshall County
11,742
Mason County
13,086
Massac County
14,169
Mcdonough County
27,238
Mchenry County
310,229
Mclean County
170,954
Menard County
12,297
Mercer County
15,699
Monroe County
34,962
Montgomery County
28,288
Morgan County
32,915
Moultrie County
14,526
Ogle County
51,788
Peoria County
181,830
Perry County
20,945
Piatt County
16,673
Pike County
14,739
Pope County
3,763
Pulaski County
5,193
Putnam County
5,637
Randolph County
30,163
Richland County
15,813
Rock Island County
144,672
Saint Clair County
257,400
Saline County
23,768
Sangamon County
196,343
Schuyler County
6,902
Scott County
4,949
Shelby County
20,990
Stark County
5,400
Stephenson County
44,630
Tazewell County
131,343
Union County
17,244
Vermilion County
74,188
Wabash County
11,361
Warren County
16,835
Washington County
13,761
Wayne County
16,179
White County
13,877
Whiteside County
55,691
Will County
696,355
Williamson County
67,153
Winnebago County
285,350
Woodford County
38,467