Data / Rankings / Uninsured rate, all ages (US) / Counties in Illinois

Counties in Illinois by uninsured rate, all ages (US), 2024

Douglas County had the highest uninsured rate, all ages (US) of 102 counties in 2024, at 15.4%. Brown County had the lowest, at 2.1%. The median was 5.1% and the figure for Illinois was 6.9%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest15.4Douglas County
Lowest2.1Brown County
Median5.1102 counties
Illinois6.9History

Map of counties, 2024

Adams County: 4.4 %Alexander County: 9.5 %Bond County: 3.6 %Boone County: 5.6 %Brown County: 2.1 %Bureau County: 5.4 %Calhoun County: 2.4 %Carroll County: 5.8 %Cass County: 7.7 %Champaign County: 5.2 %Christian County: 3.9 %Clark County: 4.7 %Clay County: 5.1 %Clinton County: 4.8 %Coles County: 7.1 %Cook County: 8.9 %Crawford County: 5.3 %Cumberland County: 5.3 %DeKalb County: 5.1 %De Witt County: 3.2 %Douglas County: 15.4 %DuPage County: 5.2 %Edgar County: 5.4 %Edwards County: 6 %Effingham County: 5.3 %Fayette County: 7.3 %Ford County: 5.8 %Franklin County: 7.4 %Fulton County: 3.7 %Gallatin County: 4.6 %Greene County: 4.1 %Grundy County: 3.4 %Hamilton County: 7.6 %Hancock County: 5.7 %Hardin County: 3.7 %Henderson County: 2.6 %Henry County: 4 %Iroquois County: 6 %Jackson County: 6.3 %Jasper County: 5 %Jefferson County: 7.2 %Jersey County: 5 %Jo Daviess County: 4.7 %Johnson County: 8.1 %Kane County: 7.8 %Kankakee County: 5.7 %Kendall County: 4 %Knox County: 5 %Lake County: 6.9 %LaSalle County: 4 %Lawrence County: 6.6 %Lee County: 3.8 %Livingston County: 5.2 %Logan County: 2.6 %McDonough County: 7.4 %McHenry County: 4.5 %McLean County: 4.6 %Macon County: 4.1 %Macoupin County: 4.1 %Madison County: 4.7 %Marion County: 6.4 %Marshall County: 3.5 %Mason County: 3.9 %Massac County: 7.8 %Menard County: 2.2 %Mercer County: 4.6 %Monroe County: 2.5 %Montgomery County: 4.5 %Morgan County: 4.4 %Moultrie County: 14.1 %Ogle County: 4.1 %Peoria County: 5.8 %Perry County: 3.5 %Piatt County: 3.3 %Pike County: 5.7 %Pope County: 3.1 %Pulaski County: 4.7 %Putnam County: 3 %Randolph County: 5.4 %Richland County: 6.1 %Rock Island County: 6.1 %St. Clair County: 5.1 %Saline County: 5.4 %Sangamon County: 3.6 %Schuyler County: 10.4 %Scott County: 5.5 %Shelby County: 4.4 %Stark County: 5.8 %Stephenson County: 5.2 %Tazewell County: 5.1 %Union County: 6.4 %Vermilion County: 4.9 %Wabash County: 4.2 %Warren County: 5 %Washington County: 3.4 %Wayne County: 12.1 %White County: 4.9 %Whiteside County: 5 %Will County: 5.2 %Williamson County: 4.6 %Winnebago County: 6.2 %Woodford County: 5.2 %
  • Under 3.7
  • 3.7 to 4.6
  • 4.6 to 5.1
  • 5.1 to 5.5
  • 5.5 to 6.7
  • 6.7 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2024

Douglas County: 15.4 %Douglas County15.4Moultrie County: 14.1 %Moultrie County14.1Wayne County: 12.1 %Wayne County12.1Schuyler County: 10.4 %Schuyler County10.4Alexander County: 9.5 %Alexander County9.5Cook County: 8.9 %Cook County8.9Johnson County: 8.1 %Johnson County8.1Kane County: 7.8 %Kane County7.8Massac County: 7.8 %Massac County7.8Cass County: 7.7 %Cass County7.7Hamilton County: 7.6 %Hamilton County7.6McDonough County: 7.4 %McDonough County7.4Franklin County: 7.4 %Franklin County7.4Fayette County: 7.3 %Fayette County7.3Jefferson County: 7.2 %Jefferson County7.2Coles County: 7.1 %Coles County7.1Lake County: 6.9 %Lake County6.9Lawrence County: 6.6 %Lawrence County6.6Union County: 6.4 %Union County6.4Marion County: 6.4 %Marion County6.4Jackson County: 6.3 %Jackson County6.3Winnebago County: 6.2 %Winnebago County6.2Richland County: 6.1 %Richland County6.1Rock Island County: 6.1 %Rock Island County6.1Iroquois County: 6 %Iroquois County6Edwards County: 6 %Edwards County6Stark County: 5.8 %Stark County5.8Carroll County: 5.8 %Carroll County5.8Peoria County: 5.8 %Peoria County5.8Ford County: 5.8 %Ford County5.8Hancock County: 5.7 %Hancock County5.7Pike County: 5.7 %Pike County5.7Kankakee County: 5.7 %Kankakee County5.7Boone County: 5.6 %Boone County5.6Scott County: 5.5 %Scott County5.5Edgar County: 5.4 %Edgar County5.4Saline County: 5.4 %Saline County5.4Bureau County: 5.4 %Bureau County5.4Randolph County: 5.4 %Randolph County5.4Crawford County: 5.3 %Crawford County5.3Douglas County: 15.4 %Douglas County15.4Moultrie County: 14.1 %Moultrie County14.1Wayne County: 12.1 %Wayne County12.1Schuyler County: 10.4 %Schuyler County10.4Alexander County: 9.5 %Alexander County9.5Cook County: 8.9 %Cook County8.9Johnson County: 8.1 %Johnson County8.1Kane County: 7.8 %Kane County7.8Massac County: 7.8 %Massac County7.8Cass County: 7.7 %Cass County7.7Hamilton County: 7.6 %Hamilton County7.6McDonough County: 7.4 %McDonough County7.4Franklin County: 7.4 %Franklin County7.4Fayette County: 7.3 %Fayette County7.3Jefferson County: 7.2 %Jefferson County7.2Coles County: 7.1 %Coles County7.1Lake County: 6.9 %Lake County6.9Lawrence County: 6.6 %Lawrence County6.6Union County: 6.4 %Union County6.4Marion County: 6.4 %Marion County6.4Jackson County: 6.3 %Jackson County6.3Winnebago County: 6.2 %Winnebago County6.2Richland County: 6.1 %Richland County6.1Rock Island County: 6.1 %Rock Island County6.1Iroquois County: 6 %Iroquois County6Edwards County: 6 %Edwards County6Stark County: 5.8 %Stark County5.8Carroll County: 5.8 %Carroll County5.8Peoria County: 5.8 %Peoria County5.8Ford County: 5.8 %Ford County5.8Hancock County: 5.7 %Hancock County5.7Pike County: 5.7 %Pike County5.7Kankakee County: 5.7 %Kankakee County5.7Boone County: 5.6 %Boone County5.6Scott County: 5.5 %Scott County5.5Edgar County: 5.4 %Edgar County5.4Saline County: 5.4 %Saline County5.4Bureau County: 5.4 %Bureau County5.4Randolph County: 5.4 %Randolph County5.4Crawford County: 5.3 %Crawford County5.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Douglas County15.4-1.3 pts
2Moultrie County14.1+1.3 pts
3Wayne County12.1+0.7 pts
4Schuyler County10.4+2.2 pts
5Alexander County9.5-1.6 pts
6Cook County8.9-0.1 pts
7Johnson County8.1+0.2 pts
8Kane County7.8-0.1 pts
9Massac County7.8-1.2 pts
10Cass County7.7+0.4 pts
11Hamilton County7.6-1.5 pts
12McDonough County7.4+0.9 pts
13Franklin County7.4-0.1 pts
14Fayette County7.3-1.7 pts
15Jefferson County7.2-0.3 pts
16Coles County7.1+0.8 pts
17Lake County6.9-0 pts
18Lawrence County6.6-0.9 pts
19Union County6.4-0.3 pts
20Marion County6.4-0.3 pts
21Jackson County6.3-0.5 pts
22Winnebago County6.20 pts
23Richland County6.1+0.3 pts
24Rock Island County6.10 pts
25Iroquois County6-0.3 pts
26Edwards County6-1.5 pts
27Stark County5.8+0.5 pts
28Carroll County5.8-1 pts
28Peoria County5.8-0.3 pts
30Ford County5.8+0.1 pts
31Hancock County5.7-0.7 pts
32Pike County5.7-0.1 pts
33Kankakee County5.70 pts
34Boone County5.6+0.8 pts
35Scott County5.5+0.4 pts
36Edgar County5.4+0.8 pts
37Saline County5.4-0.5 pts
38Bureau County5.4-0.6 pts
39Randolph County5.40 pts
40Crawford County5.3+0.2 pts
41Effingham County5.3+0.3 pts
42Cumberland County5.3-0.3 pts
43Will County5.2-0.1 pts
44Woodford County5.2+0.1 pts
45Stephenson County5.2-0 pts
46DuPage County5.2-0.1 pts
47Livingston County5.2+0.2 pts
48Champaign County5.2+0.1 pts
49Clay County5.1-0.5 pts
50DeKalb County5.1+0.4 pts
50St. Clair County5.1-0.3 pts
52Tazewell County5.10 pts
53Jasper County5+0.2 pts
54Whiteside County5-0.5 pts
55Knox County5-0.4 pts
56Jersey County5-0.3 pts
56Warren County5-1.1 pts
58White County4.90 pts
59Vermilion County4.9+0.3 pts
60Clinton County4.8-0.1 pts
61Madison County4.7-0.1 pts
62Jo Daviess County4.7-0.5 pts
63Pulaski County4.7-2.7 pts
64Clark County4.7-0.2 pts
65Mercer County4.6-0.5 pts
66McLean County4.6+0.2 pts
66Williamson County4.6-0.6 pts
68Gallatin County4.6+0.7 pts
69Montgomery County4.50 pts
70McHenry County4.5-0.1 pts
71Shelby County4.4-0.5 pts
72Adams County4.4-0.4 pts
73Morgan County4.4+0.4 pts
74Wabash County4.2-0.9 pts
75Greene County4.1-0.6 pts
75Ogle County4.1-0.2 pts
77Macon County4.1-0 pts
78Macoupin County4.1-0.3 pts
79Henry County4-0 pts
79LaSalle County40 pts
81Kendall County4-0.4 pts
82Christian County3.9-0.5 pts
83Mason County3.9-0.8 pts
84Lee County3.8+0.2 pts
85Hardin County3.7-0.1 pts
86Fulton County3.7-0.3 pts
87Bond County3.60 pts
87Sangamon County3.6-0.2 pts
89Marshall County3.5-0.1 pts
89Perry County3.5-0.2 pts
91Grundy County3.4-0.3 pts
92Washington County3.40 pts
93Piatt County3.3+0.3 pts
94De Witt County3.2-0.5 pts
95Pope County3.1+0.2 pts
96Putnam County3-0.1 pts
97Henderson County2.6-0.2 pts
98Logan County2.6+0.2 pts
99Monroe County2.5+0.3 pts
100Calhoun County2.4+1.1 pts
101Menard County2.2-0.7 pts
102Brown County2.1-0.6 pts

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. 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). American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in Illinois by uninsured rate, all ages (US), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Illinois by uninsured rate, all ages (US), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate/illinois-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in Illinois by uninsured rate, all ages (US), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate/illinois-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Illinois by uninsured rate, all ages (US), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate/illinois-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Illinois by uninsured rate, all ages (US), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/illinois-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Illinois by uninsured rate, all ages (US), 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate/illinois-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/illinois-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
ER  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Illinois by uninsured rate, all ages (US) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate&level=province&within=Illinois&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest uninsured rate, all ages (US)?

Douglas County, with 15.4% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

Brown County, with 2.1% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in Illinois: more rankings