Ranking of Illinois Counties By Number of People and Percentage of Population With No Health Insurance Coverage in 2021 (ACS-5Yrs)
Updated on October 27, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Illinois population without a health insurance coverage was 7.00% (i.e. 885,820 people). Percentagewise, among all Illinois counties, Douglas County had the highest percentage of its population with no health insurance coverage (16.49%), followed by Moultrie County (13.96%), and Wayne County (11.39%).
In numerical terms, Cook County had the highest number of people without a health insurance coverage (468,085), followed by DuPage County (48,915), and Lake County (46,089).
The charts below shows the top 10 counties by the number of people and percentage of the population without a health insurance coverage. The tables below shows the ranking for all Illinois counties.
You can see similar information for other types of health insurance coverages.
You can also see similar information for other states.
Related Topics: Illinois ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Illinois Counties By Percentage of Population With
No Health Insurance Coverage in 2021
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25
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| Rank | County | Percentage of Population (%) |
|---|---|---|
| 1 | Douglas County | 16.49 |
| 2 | Moultrie County | 13.96 |
| 3 | Wayne County | 11.39 |
| 4 | Alexander County | 10.29 |
| 5 | Cook County | 8.97 |
| 6 | Lawrence County | 8.45 |
| 7 | Fayette County | 8.04 |
| 8 | Kane County | 7.87 |
| 9 | Hardin County | 7.47 |
| 10 | Pulaski County | 7.32 |
| 11 | Coles County | 7.20 |
| 12 | Jackson County | 7.14 |
| 13 | Jefferson County | 7.05 |
| 14 | Edwards County | 6.91 |
| 15 | White County | 6.90 |
| 16 | Marion County | 6.89 |
| 17 | Jasper County | 6.77 |
| 18 | Massac County | 6.70 |
| 19 | McDonough County | 6.67 |
| 20 | Peoria County | 6.63 |
| 21 | Lake County | 6.61 |
| 22 | Winnebago County | 6.46 |
| 23 | Ford County | 6.42 |
| 24 | Saline County | 6.39 |
| 25 | Carroll County | 6.33 |
| 25 | Schuyler County | 6.33 |
| 26 | Cumberland County | 6.27 |
| 27 | Rock Island County | 6.23 |
| 28 | Bond County | 6.11 |
| 29 | Stephenson County | 6.07 |
| 30 | St. Clair County | 6.05 |
| 31 | Iroquois County | 5.99 |
| 32 | Boone County | 5.98 |
| 33 | Clay County | 5.94 |
| 34 | Franklin County | 5.89 |
| 35 | Crawford County | 5.83 |
| 35 | Wabash County | 5.83 |
| 36 | Greene County | 5.81 |
| 36 | Vermilion County | 5.81 |
| 37 | Brown County | 5.80 |
| 38 | Warren County | 5.73 |
| 39 | Pike County | 5.71 |
| 39 | Whiteside County | 5.71 |
| 40 | Williamson County | 5.68 |
| 41 | Mercer County | 5.64 |
| 41 | Randolph County | 5.64 |
| 42 | Knox County | 5.56 |
| 43 | Union County | 5.53 |
| 44 | Bureau County | 5.48 |
| 45 | Johnson County | 5.43 |
| 46 | Kankakee County | 5.38 |
| 46 | Mason County | 5.38 |
| 47 | Will County | 5.37 |
| 48 | Jo Daviess County | 5.28 |
| 48 | Stark County | 5.28 |
| 49 | DuPage County | 5.27 |
| 50 | Ogle County | 5.21 |
| 51 | Jersey County | 5.15 |
| 52 | Effingham County | 5.11 |
| 53 | Cass County | 5.06 |
| 54 | Hamilton County | 4.98 |
| 55 | Madison County | 4.97 |
| 56 | Clinton County | 4.96 |
| 57 | Fulton County | 4.95 |
| 58 | McHenry County | 4.91 |
| 59 | Livingston County | 4.87 |
| 59 | Tazewell County | 4.87 |
| 60 | DeKalb County | 4.85 |
| 61 | Macon County | 4.74 |
| 62 | Champaign County | 4.73 |
| 63 | Edgar County | 4.67 |
| 64 | Henry County | 4.55 |
| 65 | Adams County | 4.52 |
| 66 | Morgan County | 4.44 |
| 67 | McLean County | 4.36 |
| 68 | Clark County | 4.31 |
| 68 | Woodford County | 4.31 |
| 69 | Richland County | 4.26 |
| 70 | Marshall County | 4.22 |
| 70 | Scott County | 4.22 |
| 71 | Christian County | 4.17 |
| 72 | LaSalle County | 4.14 |
| 73 | Kendall County | 4.10 |
| 74 | Henderson County | 4.06 |
| 75 | Macoupin County | 3.98 |
| 76 | Hancock County | 3.96 |
| 77 | Piatt County | 3.93 |
| 78 | Sangamon County | 3.92 |
| 79 | Grundy County | 3.87 |
| 80 | Montgomery County | 3.86 |
| 81 | Lee County | 3.81 |
| 82 | Pope County | 3.75 |
| 83 | Perry County | 3.73 |
| 84 | Shelby County | 3.66 |
| 85 | Putnam County | 3.64 |
| 86 | De Witt County | 3.61 |
| 87 | Logan County | 3.42 |
| 88 | Gallatin County | 3.16 |
| 89 | Washington County | 2.73 |
| 90 | Monroe County | 2.70 |
| 91 | Menard County | 2.46 |
| 92 | Calhoun County | 1.28 |
Ranking of Illinois Counties By Number of People With
NO Health Insurance Coverage in 2021
Items per page:
25
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| Rank | County | Number of People |
|---|---|---|
| 1 | Cook County | 468085 |
| 2 | DuPage County | 48915 |
| 3 | Lake County | 46089 |
| 4 | Kane County | 40545 |
| 5 | Will County | 37036 |
| 6 | Winnebago County | 18252 |
| 7 | St. Clair County | 15280 |
| 8 | McHenry County | 15190 |
| 9 | Madison County | 13112 |
| 10 | Peoria County | 11954 |
| 11 | Champaign County | 9707 |
| 12 | Rock Island County | 8851 |
| 13 | Sangamon County | 7638 |
| 14 | McLean County | 7430 |
| 15 | Tazewell County | 6312 |
| 16 | Kankakee County | 5729 |
| 17 | Kendall County | 5347 |
| 18 | DeKalb County | 4863 |
| 19 | Macon County | 4840 |
| 20 | LaSalle County | 4433 |
| 21 | Vermilion County | 4209 |
| 22 | Jackson County | 3795 |
| 23 | Williamson County | 3702 |
| 24 | Coles County | 3375 |
| 25 | Douglas County | 3225 |
| 26 | Boone County | 3178 |
| 27 | Whiteside County | 3150 |
| 28 | Adams County | 2928 |
| 29 | Stephenson County | 2674 |
| 30 | Ogle County | 2671 |
| 31 | Knox County | 2631 |
| 32 | Marion County | 2559 |
| 33 | Jefferson County | 2500 |
| 34 | Henry County | 2216 |
| 35 | Franklin County | 2215 |
| 36 | Grundy County | 2012 |
| 37 | Moultrie County | 2004 |
| 38 | Wayne County | 1845 |
| 39 | McDonough County | 1824 |
| 40 | Bureau County | 1808 |
| 41 | Macoupin County | 1778 |
| 42 | Effingham County | 1748 |
| 43 | Clinton County | 1736 |
| 44 | Livingston County | 1649 |
| 45 | Woodford County | 1639 |
| 46 | Fayette County | 1620 |
| 47 | Iroquois County | 1615 |
| 48 | Fulton County | 1568 |
| 49 | Randolph County | 1527 |
| 50 | Saline County | 1498 |
| 51 | Morgan County | 1387 |
| 52 | Christian County | 1348 |
| 53 | Lee County | 1196 |
| 54 | Jo Daviess County | 1154 |
| 55 | Lawrence County | 1112 |
| 56 | Jersey County | 1091 |
| 57 | Montgomery County | 988 |
| 58 | Crawford County | 976 |
| 59 | Warren County | 957 |
| 60 | Bond County | 948 |
| 61 | Union County | 944 |
| 62 | Massac County | 942 |
| 63 | White County | 941 |
| 64 | Carroll County | 935 |
| 65 | Monroe County | 930 |
| 66 | Mercer County | 879 |
| 67 | Logan County | 867 |
| 68 | Ford County | 848 |
| 69 | Pike County | 829 |
| 70 | Clay County | 781 |
| 71 | Edgar County | 779 |
| 72 | Shelby County | 768 |
| 73 | Mason County | 702 |
| 74 | Hancock County | 695 |
| 75 | Perry County | 694 |
| 76 | Greene County | 692 |
| 77 | Richland County | 667 |
| 78 | Clark County | 663 |
| 79 | Wabash County | 661 |
| 80 | Cass County | 655 |
| 81 | Cumberland County | 653 |
| 81 | Piatt County | 653 |
| 82 | Jasper County | 627 |
| 83 | Johnson County | 599 |
| 84 | De Witt County | 555 |
| 85 | Alexander County | 554 |
| 86 | Marshall County | 487 |
| 87 | Schuyler County | 436 |
| 88 | Edwards County | 429 |
| 89 | Hamilton County | 396 |
| 90 | Pulaski County | 385 |
| 91 | Washington County | 372 |
| 92 | Menard County | 300 |
| 93 | Stark County | 282 |
| 94 | Hardin County | 271 |
| 95 | Henderson County | 261 |
| 96 | Brown County | 259 |
| 97 | Scott County | 206 |
| 98 | Putnam County | 205 |
| 99 | Gallatin County | 159 |
| 100 | Pope County | 138 |
| 101 | Calhoun County | 57 |