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Illinois Counties by Uninsured Rate

The uninsured rate is the share of the population with no health insurance coverage — influenced heavily by Medicaid eligibility and employer coverage.

All 102 counties ranked by Uninsured Rate, from lowest to highest. Click the column header to reverse sort order. Data from the U.S. Census Bureau, ACS 5-Year Estimates, 2023.

States Counties Cities Metros ZIPs
# Counties Uninsured Rate
1 Coles County, Illinois 0.0%
2 Jefferson County, Illinois 0.0%
3 Douglas County, Illinois 0.0%
4 De Witt County, Illinois 0.0%
5 Clinton County, Illinois 1.4%
6 Lawrence County, Illinois 1.4%
7 Brown County, Illinois 1.8%
8 Crawford County, Illinois 2.1%
9 Monroe County, Illinois 2.2%
10 Logan County, Illinois 2.4%
11 Jackson County, Illinois 2.7%
12 Pope County, Illinois 2.9%
13 Menard County, Illinois 2.9%
14 Piatt County, Illinois 3.0%
15 Lake County, Illinois 3.0%
16 Putnam County, Illinois 3.1%
17 Washington County, Illinois 3.3%
18 LaSalle County, Illinois 3.5%
19 Marshall County, Illinois 3.6%
20 Perry County, Illinois 3.7%
21 Franklin County, Illinois 3.7%
22 Sangamon County, Illinois 3.8%
23 Boone County, Illinois 4.0%
24 Morgan County, Illinois 4.0%
25 DuPage County, Illinois 4.0%
26 Macon County, Illinois 4.1%
27 Macoupin County, Illinois 4.3%
28 Ogle County, Illinois 4.3%
29 Montgomery County, Illinois 4.5%
30 Calhoun County, Illinois 4.5%
31 Vermilion County, Illinois 4.6%
32 Bureau County, Illinois 4.6%
33 Mason County, Illinois 4.6%
34 Alexander County, Illinois 4.8%
35 Fulton County, Illinois 4.8%
36 Jasper County, Illinois 4.8%
37 Adams County, Illinois 4.8%
38 Madison County, Illinois 4.8%
39 Carroll County, Illinois 4.8%
40 Livingston County, Illinois 4.9%
41 White County, Illinois 4.9%
42 Wabash County, Illinois 5.0%
43 Shelby County, Illinois 5.0%
44 Scott County, Illinois 5.1%
45 Tazewell County, Illinois 5.1%
46 Woodford County, Illinois 5.1%
47 Champaign County, Illinois 5.1%
48 Stephenson County, Illinois 5.2%
49 Ford County, Illinois 5.2%
50 Mercer County, Illinois 5.2%
51 Williamson County, Illinois 5.2%
52 Jo Daviess County, Illinois 5.2%
53 Jersey County, Illinois 5.3%
54 Stark County, Illinois 5.3%
55 Will County, Illinois 5.3%
56 Randolph County, Illinois 5.3%
57 St. Clair County, Illinois 5.4%
58 Knox County, Illinois 5.5%
59 Whiteside County, Illinois 5.5%
60 Kankakee County, Illinois 5.6%
61 Richland County, Illinois 5.8%
62 Pike County, Illinois 5.9%
63 Saline County, Illinois 5.9%
64 Rock Island County, Illinois 6.0%
65 Warren County, Illinois 6.0%
66 Peoria County, Illinois 6.0%
67 McHenry County, Illinois 6.1%
68 Clay County, Illinois 6.2%
69 Union County, Illinois 6.6%
70 Marion County, Illinois 6.6%
71 Hardin County, Illinois 6.8%
72 Bond County, Illinois 6.9%
73 Hamilton County, Illinois 7.3%
74 Pulaski County, Illinois 7.4%
75 Christian County, Illinois 7.5%
76 Kane County, Illinois 7.9%
77 Schuyler County, Illinois 8.1%
78 Clark County, Illinois 8.2%
79 Cass County, Illinois 8.9%
80 Massac County, Illinois 9.0%
81 Cook County, Illinois 9.0%
82 Winnebago County, Illinois 9.0%
83 McLean County, Illinois 9.2%
84 Greene County, Illinois 9.7%
85 Lee County, Illinois 10.2%
86 McDonough County, Illinois 10.7%
87 Wayne County, Illinois 11.4%
88 Fayette County, Illinois 11.4%
89 Cumberland County, Illinois 11.7%
90 Moultrie County, Illinois 12.8%
91 Edgar County, Illinois 13.6%
92 Gallatin County, Illinois 13.8%
93 Henry County, Illinois 13.9%
94 Henderson County, Illinois 15.1%
95 Hancock County, Illinois 20.0%
96 Johnson County, Illinois 20.1%
97 DeKalb County, Illinois 24.4%
98 Kendall County, Illinois 26.3%
99 Effingham County, Illinois 26.5%
100 Iroquois County, Illinois 27.9%