Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Illinois

Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate)

Douglas County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 102 counties in 2022, at 12.9%. Monroe County had the lowest, at 4.4%. The median was 7.1% and the figure for Illinois was 9.4%. Source: the U.S. Census Bureau.

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Highest12.9Douglas County
Lowest4.4Monroe County
Median7.1102 counties
Illinois9.4History

Map of counties, 2022

Adams County: 6.5 %Alexander County: 6.8 %Bond County: 7.5 %Boone County: 8.1 %Brown County: 4.5 %Bureau County: 8.5 %Calhoun County: 6.3 %Carroll County: 8.4 %Cass County: 9.5 %Champaign County: 6.6 %Christian County: 7 %Clark County: 6.8 %Clay County: 7 %Clinton County: 6.6 %Coles County: 7.7 %Cook County: 11.9 %Crawford County: 7 %Cumberland County: 5.8 %DeKalb County: 7.6 %De Witt County: 6.5 %Douglas County: 12.9 %DuPage County: 7.1 %Edgar County: 7.2 %Edwards County: 7.2 %Effingham County: 5.6 %Fayette County: 9 %Ford County: 7.6 %Franklin County: 9.1 %Fulton County: 7.3 %Gallatin County: 7.3 %Greene County: 7.8 %Grundy County: 5.5 %Hamilton County: 7.5 %Hancock County: 6.7 %Hardin County: 6.6 %Henderson County: 6.8 %Henry County: 6.9 %Iroquois County: 8.8 %Jackson County: 8.5 %Jasper County: 7.2 %Jefferson County: 6.9 %Jersey County: 5.9 %Jo Daviess County: 8.2 %Johnson County: 7.8 %Kane County: 11.6 %Kankakee County: 7.8 %Kendall County: 6.4 %Knox County: 7.7 %Lake County: 8.8 %LaSalle County: 7.4 %Lawrence County: 7.9 %Lee County: 6.5 %Livingston County: 6.7 %Logan County: 6.3 %McDonough County: 6.8 %McHenry County: 7 %McLean County: 5.7 %Macon County: 6.4 %Macoupin County: 7.6 %Madison County: 6.4 %Marion County: 8 %Marshall County: 6.6 %Mason County: 7.5 %Massac County: 7.7 %Menard County: 5.4 %Mercer County: 6.4 %Monroe County: 4.4 %Montgomery County: 7.7 %Morgan County: 6.8 %Moultrie County: 9.8 %Ogle County: 7.1 %Peoria County: 7.1 %Perry County: 7.2 %Piatt County: 5.8 %Pike County: 9.3 %Pope County: 5.6 %Pulaski County: 6.9 %Putnam County: 7.2 %Randolph County: 8.6 %Richland County: 7.7 %Rock Island County: 8.9 %St. Clair County: 6.2 %Saline County: 7.3 %Sangamon County: 6 %Schuyler County: 9.3 %Scott County: 5.5 %Shelby County: 6.6 %Stark County: 8.3 %Stephenson County: 6.5 %Tazewell County: 5.9 %Union County: 8.2 %Vermilion County: 6.6 %Wabash County: 6.8 %Warren County: 8.4 %Washington County: 5.4 %Wayne County: 10.3 %White County: 7.4 %Whiteside County: 6.9 %Will County: 7.2 %Williamson County: 5.8 %Winnebago County: 8.6 %Woodford County: 5.8 %
  • Under 6.3
  • 6.3 to 6.7
  • 6.7 to 7.1
  • 7.1 to 7.6
  • 7.6 to 8.4
  • 8.4 and over
%, 2022. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2022

Douglas County: 12.9 %Douglas County12.9Cook County: 11.9 %Cook County11.9Kane County: 11.6 %Kane County11.6Wayne County: 10.3 %Wayne County10.3Moultrie County: 9.8 %Moultrie County9.8Cass County: 9.5 %Cass County9.5Pike County: 9.3 %Pike County9.3Schuyler County: 9.3 %Schuyler County9.3Franklin County: 9.1 %Franklin County9.1Fayette County: 9 %Fayette County9Rock Island County: 8.9 %Rock Island County8.9Iroquois County: 8.8 %Iroquois County8.8Lake County: 8.8 %Lake County8.8Randolph County: 8.6 %Randolph County8.6Winnebago County: 8.6 %Winnebago County8.6Bureau County: 8.5 %Bureau County8.5Jackson County: 8.5 %Jackson County8.5Carroll County: 8.4 %Carroll County8.4Warren County: 8.4 %Warren County8.4Stark County: 8.3 %Stark County8.3Jo Daviess County: 8.2 %Jo Daviess County8.2Union County: 8.2 %Union County8.2Boone County: 8.1 %Boone County8.1Marion County: 8 %Marion County8Lawrence County: 7.9 %Lawrence County7.9Greene County: 7.8 %Greene County7.8Johnson County: 7.8 %Johnson County7.8Kankakee County: 7.8 %Kankakee County7.8Coles County: 7.7 %Coles County7.7Knox County: 7.7 %Knox County7.7Massac County: 7.7 %Massac County7.7Montgomery County: 7.7 %Montgomery County7.7Richland County: 7.7 %Richland County7.7DeKalb County: 7.6 %DeKalb County7.6Ford County: 7.6 %Ford County7.6Macoupin County: 7.6 %Macoupin County7.6Bond County: 7.5 %Bond County7.5Hamilton County: 7.5 %Hamilton County7.5Mason County: 7.5 %Mason County7.5LaSalle County: 7.4 %LaSalle County7.4Douglas County: 12.9 %Douglas County12.9Cook County: 11.9 %Cook County11.9Kane County: 11.6 %Kane County11.6Wayne County: 10.3 %Wayne County10.3Moultrie County: 9.8 %Moultrie County9.8Cass County: 9.5 %Cass County9.5Pike County: 9.3 %Pike County9.3Schuyler County: 9.3 %Schuyler County9.3Franklin County: 9.1 %Franklin County9.1Fayette County: 9 %Fayette County9Rock Island County: 8.9 %Rock Island County8.9Iroquois County: 8.8 %Iroquois County8.8Lake County: 8.8 %Lake County8.8Randolph County: 8.6 %Randolph County8.6Winnebago County: 8.6 %Winnebago County8.6Bureau County: 8.5 %Bureau County8.5Jackson County: 8.5 %Jackson County8.5Carroll County: 8.4 %Carroll County8.4Warren County: 8.4 %Warren County8.4Stark County: 8.3 %Stark County8.3Jo Daviess County: 8.2 %Jo Daviess County8.2Union County: 8.2 %Union County8.2Boone County: 8.1 %Boone County8.1Marion County: 8 %Marion County8Lawrence County: 7.9 %Lawrence County7.9Greene County: 7.8 %Greene County7.8Johnson County: 7.8 %Johnson County7.8Kankakee County: 7.8 %Kankakee County7.8Coles County: 7.7 %Coles County7.7Knox County: 7.7 %Knox County7.7Massac County: 7.7 %Massac County7.7Montgomery County: 7.7 %Montgomery County7.7Richland County: 7.7 %Richland County7.7DeKalb County: 7.6 %DeKalb County7.6Ford County: 7.6 %Ford County7.6Macoupin County: 7.6 %Macoupin County7.6Bond County: 7.5 %Bond County7.5Hamilton County: 7.5 %Hamilton County7.5Mason County: 7.5 %Mason County7.5LaSalle County: 7.4 %LaSalle County7.4
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Douglas County12.9-0.2 pts
2Cook County11.9-0.6 pts
3Kane County11.6+0.7 pts
4Wayne County10.3-0.4 pts
5Moultrie County9.8-0.9 pts
6Cass County9.5-3.2 pts
7Pike County9.3+0.4 pts
7Schuyler County9.3-0.2 pts
9Franklin County9.1-0.7 pts
10Fayette County9-0.5 pts
11Rock Island County8.9-1.5 pts
12Iroquois County8.8-1.2 pts
12Lake County8.8-0.9 pts
14Randolph County8.6+0.4 pts
14Winnebago County8.6-1.9 pts
16Bureau County8.5-0.8 pts
16Jackson County8.5-0.7 pts
18Carroll County8.4-0.1 pts
18Warren County8.4-1.1 pts
20Stark County8.3-1.4 pts
21Jo Daviess County8.2-0.1 pts
21Union County8.2-1.2 pts
23Boone County8.1-1.9 pts
24Marion County8-0.7 pts
25Lawrence County7.9-0.6 pts
26Greene County7.8+0.1 pts
26Johnson County7.80 pts
26Kankakee County7.8-1.8 pts
29Coles County7.7-1.4 pts
29Knox County7.7-1.2 pts
29Massac County7.7-0.8 pts
29Montgomery County7.7-0.7 pts
29Richland County7.7-0.4 pts
34DeKalb County7.6-1.4 pts
34Ford County7.6-1.1 pts
34Macoupin County7.6-0.5 pts
37Bond County7.5-0.7 pts
37Hamilton County7.5-0.9 pts
37Mason County7.5-1.1 pts
40LaSalle County7.4-1 pts
40White County7.4-0.8 pts
42Fulton County7.3-0.3 pts
42Gallatin County7.3-2.1 pts
42Saline County7.3-1.7 pts
45Edgar County7.2-0.1 pts
45Edwards County7.2-1.7 pts
45Jasper County7.20 pts
45Perry County7.2-0.4 pts
45Putnam County7.2-1.5 pts
45Will County7.2-0.9 pts
51DuPage County7.10 pts
51Ogle County7.1-1.5 pts
51Peoria County7.1-2.1 pts
54Christian County7-1.1 pts
54Clay County7-1.1 pts
54Crawford County7-0.8 pts
54McHenry County7-0.1 pts
58Henry County6.9-0.1 pts
58Jefferson County6.9-1.6 pts
58Pulaski County6.9-2.7 pts
58Whiteside County6.9-1.4 pts
62Alexander County6.8-2.4 pts
62Clark County6.8-0.4 pts
62Henderson County6.8-1.9 pts
62McDonough County6.8-0.9 pts
62Morgan County6.8-1.2 pts
62Wabash County6.8-1.1 pts
68Hancock County6.7-0.8 pts
68Livingston County6.7-1.6 pts
70Champaign County6.6-1 pts
70Clinton County6.6-0.5 pts
70Hardin County6.6-2.2 pts
70Marshall County6.6-0.7 pts
70Shelby County6.60 pts
70Vermilion County6.6-1.6 pts
76Adams County6.5-0.6 pts
76De Witt County6.5-0.8 pts
76Lee County6.5-1.2 pts
76Stephenson County6.5-1.6 pts
80Kendall County6.4-1.2 pts
80Macon County6.4-1.2 pts
80Madison County6.4-0.8 pts
80Mercer County6.4-1.6 pts
84Calhoun County6.3-0.9 pts
84Logan County6.3-0.2 pts
86St. Clair County6.2-2.2 pts
87Sangamon County6-1.4 pts
88Jersey County5.9-0.8 pts
88Tazewell County5.9-0.9 pts
90Cumberland County5.8-1.7 pts
90Piatt County5.8-0.7 pts
90Williamson County5.8-1.6 pts
90Woodford County5.8-0.5 pts
94McLean County5.7-1.8 pts
95Effingham County5.6-0.9 pts
95Pope County5.6-2.1 pts
97Grundy County5.5-0.3 pts
97Scott County5.5-2.3 pts
99Menard County5.4-0.2 pts
99Washington County5.4-0.3 pts
101Brown County4.5-0.3 pts
102Monroe County4.4-0.5 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate), 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate), 2022. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/illinois-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate), 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/illinois-counties?period=2022.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate), 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/illinois-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2022,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate), 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/illinois-counties?period=2022. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Illinois by uninsured rate, ages 18 to 64 (US model-based estimate), 2022
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/illinois-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/illinois-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2022-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Douglas County, with 12.9% in 2022, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Monroe County, with 4.4% in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Illinois: more rankings