Data / Rankings / Uninsured rate, ages 35 to 64 (US, ACS) / Counties in Illinois

Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS)

Alexander County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 102 counties in 2023, at 16.9%. Monroe County had the lowest, at 2.3%. The median was 7% and the figure for Illinois was 9.1%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest16.9Alexander County
Lowest2.3Monroe County
Median7102 counties
Illinois9.1History

Map of counties, 2023

Adams County: 5.6 %Alexander County: 16.9 %Bond County: 5 %Boone County: 7.9 %Brown County: 3.4 %Bureau County: 7.6 %Calhoun County: 2.8 %Carroll County: 6.8 %Cass County: 10.9 %Champaign County: 7 %Christian County: 6.3 %Clark County: 7.9 %Clay County: 9.1 %Clinton County: 6.1 %Coles County: 8.8 %Cook County: 12 %Crawford County: 7.5 %Cumberland County: 8.5 %DeKalb County: 6.4 %De Witt County: 5.7 %Douglas County: 13.3 %DuPage County: 6.7 %Edgar County: 8.2 %Edwards County: 13.1 %Effingham County: 7.1 %Fayette County: 10.4 %Ford County: 7.7 %Franklin County: 10 %Fulton County: 5.7 %Gallatin County: 6.6 %Greene County: 9.4 %Grundy County: 4.6 %Hamilton County: 11.5 %Hancock County: 7.8 %Hardin County: 7 %Henderson County: 5.9 %Henry County: 5.8 %Iroquois County: 8 %Jackson County: 9.1 %Jasper County: 8.3 %Jefferson County: 8.2 %Jersey County: 8.4 %Jo Daviess County: 5.4 %Johnson County: 8.1 %Kane County: 10.5 %Kankakee County: 7.6 %Kendall County: 4.8 %Knox County: 7.4 %Lake County: 8.8 %LaSalle County: 5.5 %Lawrence County: 10.9 %Lee County: 4.4 %Livingston County: 6.6 %Logan County: 3.6 %McDonough County: 7.3 %McHenry County: 5.7 %McLean County: 4.9 %Macon County: 5 %Macoupin County: 6.4 %Madison County: 6.1 %Marion County: 9.8 %Marshall County: 5.8 %Mason County: 7.6 %Massac County: 9.6 %Menard County: 4.6 %Mercer County: 5.3 %Monroe County: 2.3 %Montgomery County: 6.2 %Morgan County: 6 %Moultrie County: 13.4 %Ogle County: 5.5 %Peoria County: 8.1 %Perry County: 4.7 %Piatt County: 3.2 %Pike County: 9.5 %Pope County: 3 %Pulaski County: 13.7 %Putnam County: 3.3 %Randolph County: 6.9 %Richland County: 7 %Rock Island County: 7 %St. Clair County: 6.3 %Saline County: 8 %Sangamon County: 4.6 %Schuyler County: 13 %Scott County: 5.6 %Shelby County: 7.5 %Stark County: 8.1 %Stephenson County: 6.8 %Tazewell County: 6.8 %Union County: 8.4 %Vermilion County: 7.1 %Wabash County: 6.8 %Warren County: 10.4 %Washington County: 3.5 %Wayne County: 12 %White County: 7.9 %Whiteside County: 6.9 %Will County: 6.8 %Williamson County: 5.9 %Winnebago County: 8.4 %Woodford County: 4.4 %
  • Under 5
  • 5 to 6.1
  • 6.1 to 7
  • 7 to 8
  • 8 to 9.5
  • 9.5 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

Alexander County: 16.9 %Alexander County16.9Pulaski County: 13.7 %Pulaski County13.7Moultrie County: 13.4 %Moultrie County13.4Douglas County: 13.3 %Douglas County13.3Edwards County: 13.1 %Edwards County13.1Schuyler County: 13 %Schuyler County13Wayne County: 12 %Wayne County12Cook County: 12 %Cook County12Hamilton County: 11.5 %Hamilton County11.5Cass County: 10.9 %Cass County10.9Lawrence County: 10.9 %Lawrence County10.9Kane County: 10.5 %Kane County10.5Warren County: 10.4 %Warren County10.4Fayette County: 10.4 %Fayette County10.4Franklin County: 10 %Franklin County10Marion County: 9.8 %Marion County9.8Massac County: 9.6 %Massac County9.6Pike County: 9.5 %Pike County9.5Greene County: 9.4 %Greene County9.4Clay County: 9.1 %Clay County9.1Jackson County: 9.1 %Jackson County9.1Lake County: 8.8 %Lake County8.8Coles County: 8.8 %Coles County8.8Cumberland County: 8.5 %Cumberland County8.5Union County: 8.4 %Union County8.4Winnebago County: 8.4 %Winnebago County8.4Jersey County: 8.4 %Jersey County8.4Jasper County: 8.3 %Jasper County8.3Edgar County: 8.2 %Edgar County8.2Jefferson County: 8.2 %Jefferson County8.2Johnson County: 8.1 %Johnson County8.1Peoria County: 8.1 %Peoria County8.1Stark County: 8.1 %Stark County8.1Saline County: 8 %Saline County8Iroquois County: 8 %Iroquois County8White County: 7.9 %White County7.9Boone County: 7.9 %Boone County7.9Clark County: 7.9 %Clark County7.9Hancock County: 7.8 %Hancock County7.8Ford County: 7.7 %Ford County7.7Alexander County: 16.9 %Alexander County16.9Pulaski County: 13.7 %Pulaski County13.7Moultrie County: 13.4 %Moultrie County13.4Douglas County: 13.3 %Douglas County13.3Edwards County: 13.1 %Edwards County13.1Schuyler County: 13 %Schuyler County13Wayne County: 12 %Wayne County12Cook County: 12 %Cook County12Hamilton County: 11.5 %Hamilton County11.5Cass County: 10.9 %Cass County10.9Lawrence County: 10.9 %Lawrence County10.9Kane County: 10.5 %Kane County10.5Warren County: 10.4 %Warren County10.4Fayette County: 10.4 %Fayette County10.4Franklin County: 10 %Franklin County10Marion County: 9.8 %Marion County9.8Massac County: 9.6 %Massac County9.6Pike County: 9.5 %Pike County9.5Greene County: 9.4 %Greene County9.4Clay County: 9.1 %Clay County9.1Jackson County: 9.1 %Jackson County9.1Lake County: 8.8 %Lake County8.8Coles County: 8.8 %Coles County8.8Cumberland County: 8.5 %Cumberland County8.5Union County: 8.4 %Union County8.4Winnebago County: 8.4 %Winnebago County8.4Jersey County: 8.4 %Jersey County8.4Jasper County: 8.3 %Jasper County8.3Edgar County: 8.2 %Edgar County8.2Jefferson County: 8.2 %Jefferson County8.2Johnson County: 8.1 %Johnson County8.1Peoria County: 8.1 %Peoria County8.1Stark County: 8.1 %Stark County8.1Saline County: 8 %Saline County8Iroquois County: 8 %Iroquois County8White County: 7.9 %White County7.9Boone County: 7.9 %Boone County7.9Clark County: 7.9 %Clark County7.9Hancock County: 7.8 %Hancock County7.8Ford County: 7.7 %Ford County7.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Alexander County16.9-3.3 pts
2Pulaski County13.7+1.4 pts
3Moultrie County13.4+2.6 pts
4Douglas County13.3-0.4 pts
5Edwards County13.1+2.8 pts
6Schuyler County13-3.6 pts
7Wayne County12+0.5 pts
8Cook County120 pts
9Hamilton County11.5+1.7 pts
10Cass County10.9+3.3 pts
11Lawrence County10.9+0.6 pts
12Kane County10.5-0.2 pts
13Warren County10.4-0.4 pts
14Fayette County10.4+0.1 pts
15Franklin County10+0.9 pts
16Marion County9.8+0.3 pts
17Massac County9.60 pts
18Pike County9.5-0.9 pts
19Greene County9.4-0.3 pts
20Clay County9.1-2.6 pts
21Jackson County9.1-0.3 pts
22Lake County8.8+0.2 pts
23Coles County8.8-0.5 pts
24Cumberland County8.5-0.5 pts
25Union County8.4-0.5 pts
26Winnebago County8.4-0 pts
27Jersey County8.4+1.5 pts
28Jasper County8.3+0.6 pts
29Edgar County8.2-0.1 pts
30Jefferson County8.2+0.8 pts
31Johnson County8.1-2.4 pts
31Peoria County8.1-0.1 pts
31Stark County8.1-0.7 pts
34Saline County8+1.1 pts
35Iroquois County8+0.8 pts
36White County7.9-3 pts
37Boone County7.9-1.4 pts
38Clark County7.9+0.6 pts
39Hancock County7.8+1.6 pts
40Ford County7.7+0.4 pts
41Mason County7.6-0.2 pts
42Bureau County7.6-0.2 pts
43Kankakee County7.6+0.5 pts
44Crawford County7.5-1.2 pts
44Shelby County7.5+1 pts
46Knox County7.4-0.3 pts
47McDonough County7.3+1.1 pts
48Effingham County7.1+0.4 pts
49Vermilion County7.1+0.3 pts
50Rock Island County70 pts
51Richland County7+0.1 pts
52Hardin County7-2.5 pts
53Champaign County7+0.3 pts
54Randolph County6.9+1.4 pts
55Whiteside County6.9+0.1 pts
56Wabash County6.8-1.6 pts
56Will County6.8-0.1 pts
58Tazewell County6.8+0.9 pts
59Stephenson County6.8+0.1 pts
60Carroll County6.8+0.1 pts
61DuPage County6.7+0.1 pts
62Gallatin County6.6+2.3 pts
63Livingston County6.6+1.3 pts
64Macoupin County6.4+0.8 pts
65DeKalb County6.4+0.8 pts
66Christian County6.3-0.3 pts
67St. Clair County6.30 pts
68Montgomery County6.2+0.3 pts
69Madison County6.1-0.1 pts
70Clinton County6.1-0.3 pts
71Morgan County6-0.2 pts
72Henderson County5.9+1.3 pts
72Williamson County5.9-1 pts
74Henry County5.8-0.6 pts
74Marshall County5.8-1 pts
76De Witt County5.7+0.1 pts
77McHenry County5.7-0.3 pts
78Fulton County5.7-1.1 pts
79Adams County5.6-0.1 pts
80Scott County5.6-0.6 pts
81LaSalle County5.5-0.2 pts
82Ogle County5.5-0.5 pts
83Jo Daviess County5.4+0.2 pts
84Mercer County5.3-0.1 pts
85Bond County5+0.3 pts
86Macon County5-0.7 pts
87McLean County4.9-0.1 pts
88Kendall County4.8+1.7 pts
89Perry County4.7-0.4 pts
90Menard County4.6+1 pts
91Sangamon County4.6-0.1 pts
92Grundy County4.6+0.4 pts
93Woodford County4.4-0.2 pts
94Lee County4.4-0.3 pts
95Logan County3.6-0.8 pts
96Washington County3.5+0.8 pts
97Brown County3.4-4.4 pts
98Putnam County3.3-1.4 pts
99Piatt County3.2-2.6 pts
100Pope County3-1.2 pts
101Calhoun County2.8+0.5 pts
102Monroe County2.3+0.3 pts

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. 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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/illinois-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/illinois-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/illinois-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/illinois-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Illinois by uninsured rate, ages 35 to 64 (US, ACS), 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/illinois-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/illinois-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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, ages 35 to 64 (US, ACS) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_35_64","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_35_64&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, ages 35 to 64 (US, ACS)?

Alexander County, with 16.9% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Monroe County, with 2.3% in 2023.

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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in Illinois: more rankings