Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 2024

Moultrie County had the highest uninsured rate, ages 19 to 34 (US, ACS) of 102 counties in 2024, at 24.9%. De Witt County had the lowest, at 1.9%. The median was 8.8% and the figure for Illinois was 11.6%. Source: the U.S. Census Bureau.

Highest24.9Moultrie County
Median8.8102 counties
Illinois11.6History

Top 40 counties, 2024

Moultrie County: 24.9 %Moultrie County24.9Johnson County: 24.5 %Johnson County24.5Douglas County: 21.5 %Douglas County21.5Massac County: 18.6 %Massac County18.6Alexander County: 18.3 %Alexander County18.3Richland County: 16.4 %Richland County16.4Wayne County: 14.9 %Wayne County14.9Scott County: 14.6 %Scott County14.6Kane County: 13.9 %Kane County13.9Cook County: 13.7 %Cook County13.7Randolph County: 13.6 %Randolph County13.6Jo Daviess County: 13.5 %Jo Daviess County13.5Jefferson County: 12.8 %Jefferson County12.8Franklin County: 12.7 %Franklin County12.7Iroquois County: 12.6 %Iroquois County12.6Stephenson County: 12.6 %Stephenson County12.6Rock Island County: 12.5 %Rock Island County12.5Marion County: 12.3 %Marion County12.3Hancock County: 12.2 %Hancock County12.2Lake County: 11.9 %Lake County11.9Mercer County: 11.8 %Mercer County11.8McDonough County: 11.7 %McDonough County11.7Williamson County: 11.3 %Williamson County11.3Cass County: 11.2 %Cass County11.2Pike County: 11.2 %Pike County11.2Winnebago County: 11.2 %Winnebago County11.2Knox County: 10.9 %Knox County10.9St. Clair County: 10.9 %St. Clair County10.9Peoria County: 10.7 %Peoria County10.7Jasper County: 10.7 %Jasper County10.7Schuyler County: 10.6 %Schuyler County10.6Lawrence County: 10.1 %Lawrence County10.1Vermilion County: 10.1 %Vermilion County10.1Kankakee County: 10 %Kankakee County10Washington County: 9.9 %Washington County9.9Coles County: 9.9 %Coles County9.9Carroll County: 9.7 %Carroll County9.7Crawford County: 9.7 %Crawford County9.7Livingston County: 9.6 %Livingston County9.6Fayette County: 9.5 %Fayette County9.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Moultrie County24.9+6.1 pts
2Johnson County24.5+3.3 pts
3Douglas County21.5-2.6 pts
4Massac County18.6-5.4 pts
5Alexander County18.3-2.5 pts
6Richland County16.4+2.8 pts
7Wayne County14.9-3.2 pts
8Scott County14.6-0.9 pts
9Kane County13.9-0.2 pts
10Cook County13.7-0.2 pts
11Randolph County13.6+0.2 pts
12Jo Daviess County13.5-1.3 pts
13Jefferson County12.8-1.9 pts
14Franklin County12.7-0.2 pts
15Iroquois County12.6-0.8 pts
16Stephenson County12.6-0.1 pts
17Rock Island County12.5+0.6 pts
18Marion County12.3-0 pts
19Hancock County12.2-1.2 pts
20Lake County11.9-0.5 pts
21Mercer County11.8-1.7 pts
22McDonough County11.7+1.7 pts
23Williamson County11.3-0.6 pts
24Cass County11.2+2 pts
25Pike County11.2+1.5 pts
26Winnebago County11.2+0.3 pts
27Knox County10.9-1.1 pts
28St. Clair County10.9-0.7 pts
29Peoria County10.7-0.2 pts
30Jasper County10.7+1.5 pts
31Schuyler County10.6+2.1 pts
32Lawrence County10.1-4.4 pts
33Vermilion County10.1+1.4 pts
34Kankakee County10+0.5 pts
35Washington County9.9+2.7 pts
36Coles County9.9+1.1 pts
37Carroll County9.7-0.6 pts
38Crawford County9.7+0.9 pts
39Livingston County9.6+0.1 pts
40Fayette County9.5-1.2 pts
41DuPage County9.4+0.1 pts
41Wabash County9.4-3.1 pts
43Effingham County9.4+0.1 pts
44Saline County9.3-2.1 pts
45Will County9.3+0.2 pts
46Tazewell County9.2+0.7 pts
47Bond County9.1+2.6 pts
48Hardin County9.1+1.6 pts
49Madison County9-0.2 pts
50Ford County8.8-0.3 pts
51Macon County8.8+0.4 pts
52Kendall County8.7+0.9 pts
53Stark County8.7+0.7 pts
54Boone County8.6+2 pts
55McLean County8.6+1.2 pts
56Lee County8.5-0.4 pts
57Jackson County8.4-1.1 pts
58McHenry County8.4+0.1 pts
59Morgan County8.4+0.9 pts
60Clay County8.3+1.1 pts
61Jersey County8.2-0.8 pts
62Montgomery County8.2-0.3 pts
63Hamilton County8.1-2.8 pts
64Pope County8.1+1.8 pts
65Macoupin County8-0.5 pts
66Whiteside County8-2.2 pts
67Bureau County8-1.2 pts
68Clinton County8+1 pts
69Woodford County7.9-1.1 pts
70Sangamon County7.9-0.4 pts
71Putnam County7.8-1.3 pts
72Ogle County7.7+0.2 pts
73Adams County7.6-1.5 pts
74Warren County7.6-0.3 pts
75Cumberland County7.5+2.8 pts
75LaSalle County7.5+0.4 pts
77Edwards County7.5-0.9 pts
78DeKalb County7.3-0.2 pts
79Christian County7.3-2 pts
80Clark County7.3-0.2 pts
81Fulton County7.2-0.2 pts
82Union County7.1-0.9 pts
83Henry County7.1-0.9 pts
84Perry County7.1-0.2 pts
85Shelby County7+0.9 pts
86Edgar County7+1 pts
87Champaign County6.6-0.1 pts
88Monroe County6.4+0.7 pts
89Piatt County5.7-1.1 pts
90Pulaski County5.6+2.1 pts
91Grundy County5.5-0.5 pts
92Brown County5.4+1.3 pts
93Calhoun County5.3+4.2 pts
94White County5-2.4 pts
95Henderson County4.9+1.7 pts
96Greene County4.4+0.3 pts
97Logan County4.3+0.1 pts
98Mason County4-2.9 pts
99Marshall County4-0.7 pts
100Menard County3.3-2 pts
101Gallatin County1.9-1.4 pts
102De Witt County1.9-2.8 pts

Other periods

About this ranking

People aged 19 to 34 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 19 to 34. 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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, 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 aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs (Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 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 aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 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-ages-19-34/illinois-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 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-ages-19-34/illinois-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 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-ages-19-34/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 aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 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-ages-19-34/illinois-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, 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 aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS), 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-ages-19-34/illinois-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/illinois-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, 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  - 
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Rank Counties in Illinois by uninsured rate, ages 19 to 34 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 19 to 34 (US, ACS)?

Moultrie County, with 24.9% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 19 to 34 (US, ACS)?

De Witt County, with 1.9% 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 aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 19 to 34 (US, ACS): other rankings

Counties in Illinois: more rankings