Data / Rankings / Uninsured rate, under 19 (US, ACS) / Counties in Illinois

Counties in Illinois by uninsured rate, under 19 (US, ACS)

Douglas County had the highest uninsured rate, under 19 (US, ACS) of 102 counties in 2021, at 23%. Hardin County had the lowest, at 0%. The median was 2.8% and the figure for Illinois was 3.3%. Source: the U.S. Census Bureau.

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Highest23Douglas County
Lowest0Hardin County
Median2.8102 counties
Illinois3.3History

Map of counties, 2021

Adams County: 2.8 %Alexander County: 2.7 %Bond County: 5 %Boone County: 2.1 %Brown County: 4.6 %Bureau County: 5.2 %Calhoun County: 0.2 %Carroll County: 5.7 %Cass County: 3 %Champaign County: 2 %Christian County: 1.5 %Clark County: 1.4 %Clay County: 2.8 %Clinton County: 4.9 %Coles County: 5.9 %Cook County: 3.7 %Crawford County: 3.6 %Cumberland County: 5.1 %DeKalb County: 1.4 %De Witt County: 0.8 %Douglas County: 23 %DuPage County: 2.9 %Edgar County: 2.6 %Edwards County: 3.6 %Effingham County: 2.6 %Fayette County: 7.3 %Ford County: 4.3 %Franklin County: 2.2 %Fulton County: 1.8 %Gallatin County: 0.5 %Greene County: 2.4 %Grundy County: 2.8 %Hamilton County: 3.1 %Hancock County: 1 %Hardin County: 0 %Henderson County: 2.4 %Henry County: 1.5 %Iroquois County: 4.1 %Jackson County: 3.6 %Jasper County: 1 %Jefferson County: 5.2 %Jersey County: 2 %Jo Daviess County: 5.3 %Johnson County: 2.9 %Kane County: 2.8 %Kankakee County: 1.9 %Kendall County: 2.7 %Knox County: 2.3 %Lake County: 3 %LaSalle County: 2.6 %Lawrence County: 1.9 %Lee County: 1.7 %Livingston County: 3.9 %Logan County: 2.5 %McDonough County: 4.8 %McHenry County: 2.7 %McLean County: 2.9 %Macon County: 3.4 %Macoupin County: 1.4 %Madison County: 2.6 %Marion County: 2.9 %Marshall County: 2.3 %Mason County: 4.5 %Massac County: 4 %Menard County: 0.8 %Mercer County: 4 %Monroe County: 1.7 %Montgomery County: 1.5 %Morgan County: 0.4 %Moultrie County: 17.1 %Ogle County: 3 %Peoria County: 3.9 %Perry County: 1.8 %Piatt County: 1.6 %Pike County: 3.1 %Pope County: 6.6 %Pulaski County: 5.9 %Putnam County: 0.8 %Randolph County: 3.7 %Richland County: 1.6 %Rock Island County: 4.7 %St. Clair County: 3 %Saline County: 5.6 %Sangamon County: 1.5 %Schuyler County: 3.4 %Scott County: 1.2 %Shelby County: 1.3 %Stark County: 2.5 %Stephenson County: 3.8 %Tazewell County: 3.7 %Union County: 5.5 %Vermilion County: 3.8 %Wabash County: 2.2 %Warren County: 1.4 %Washington County: 1.7 %Wayne County: 16.9 %White County: 5.3 %Whiteside County: 3.8 %Will County: 2.3 %Williamson County: 2.7 %Winnebago County: 3.2 %Woodford County: 4.1 %
  • Under 1.5
  • 1.5 to 2.3
  • 2.3 to 2.8
  • 2.8 to 3.7
  • 3.7 to 4.8
  • 4.8 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Douglas County: 23 %Douglas County23Moultrie County: 17.1 %Moultrie County17.1Wayne County: 16.9 %Wayne County16.9Fayette County: 7.3 %Fayette County7.3Pope County: 6.6 %Pope County6.6Coles County: 5.9 %Coles County5.9Pulaski County: 5.9 %Pulaski County5.9Carroll County: 5.7 %Carroll County5.7Saline County: 5.6 %Saline County5.6Union County: 5.5 %Union County5.5White County: 5.3 %White County5.3Jo Daviess County: 5.3 %Jo Daviess County5.3Jefferson County: 5.2 %Jefferson County5.2Bureau County: 5.2 %Bureau County5.2Cumberland County: 5.1 %Cumberland County5.1Bond County: 5 %Bond County5Clinton County: 4.9 %Clinton County4.9McDonough County: 4.8 %McDonough County4.8Rock Island County: 4.7 %Rock Island County4.7Brown County: 4.6 %Brown County4.6Mason County: 4.5 %Mason County4.5Ford County: 4.3 %Ford County4.3Iroquois County: 4.1 %Iroquois County4.1Woodford County: 4.1 %Woodford County4.1Massac County: 4 %Massac County4Mercer County: 4 %Mercer County4Livingston County: 3.9 %Livingston County3.9Peoria County: 3.9 %Peoria County3.9Whiteside County: 3.8 %Whiteside County3.8Vermilion County: 3.8 %Vermilion County3.8Stephenson County: 3.8 %Stephenson County3.8Randolph County: 3.7 %Randolph County3.7Cook County: 3.7 %Cook County3.7Tazewell County: 3.7 %Tazewell County3.7Jackson County: 3.6 %Jackson County3.6Crawford County: 3.6 %Crawford County3.6Edwards County: 3.6 %Edwards County3.6Schuyler County: 3.4 %Schuyler County3.4Macon County: 3.4 %Macon County3.4Winnebago County: 3.2 %Winnebago County3.2Douglas County: 23 %Douglas County23Moultrie County: 17.1 %Moultrie County17.1Wayne County: 16.9 %Wayne County16.9Fayette County: 7.3 %Fayette County7.3Pope County: 6.6 %Pope County6.6Coles County: 5.9 %Coles County5.9Pulaski County: 5.9 %Pulaski County5.9Carroll County: 5.7 %Carroll County5.7Saline County: 5.6 %Saline County5.6Union County: 5.5 %Union County5.5White County: 5.3 %White County5.3Jo Daviess County: 5.3 %Jo Daviess County5.3Jefferson County: 5.2 %Jefferson County5.2Bureau County: 5.2 %Bureau County5.2Cumberland County: 5.1 %Cumberland County5.1Bond County: 5 %Bond County5Clinton County: 4.9 %Clinton County4.9McDonough County: 4.8 %McDonough County4.8Rock Island County: 4.7 %Rock Island County4.7Brown County: 4.6 %Brown County4.6Mason County: 4.5 %Mason County4.5Ford County: 4.3 %Ford County4.3Iroquois County: 4.1 %Iroquois County4.1Woodford County: 4.1 %Woodford County4.1Massac County: 4 %Massac County4Mercer County: 4 %Mercer County4Livingston County: 3.9 %Livingston County3.9Peoria County: 3.9 %Peoria County3.9Whiteside County: 3.8 %Whiteside County3.8Vermilion County: 3.8 %Vermilion County3.8Stephenson County: 3.8 %Stephenson County3.8Randolph County: 3.7 %Randolph County3.7Cook County: 3.7 %Cook County3.7Tazewell County: 3.7 %Tazewell County3.7Jackson County: 3.6 %Jackson County3.6Crawford County: 3.6 %Crawford County3.6Edwards County: 3.6 %Edwards County3.6Schuyler County: 3.4 %Schuyler County3.4Macon County: 3.4 %Macon County3.4Winnebago County: 3.2 %Winnebago County3.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Douglas County23
2Moultrie County17.1
3Wayne County16.9
4Fayette County7.3
5Pope County6.6
6Coles County5.9
7Pulaski County5.9
8Carroll County5.7
9Saline County5.6
10Union County5.5
11White County5.3
12Jo Daviess County5.3
13Jefferson County5.2
14Bureau County5.2
15Cumberland County5.1
16Bond County5
17Clinton County4.9
18McDonough County4.8
19Rock Island County4.7
20Brown County4.6
21Mason County4.5
22Ford County4.3
23Iroquois County4.1
24Woodford County4.1
25Massac County4
26Mercer County4
27Livingston County3.9
28Peoria County3.9
29Whiteside County3.8
30Vermilion County3.8
31Stephenson County3.8
32Randolph County3.7
33Cook County3.7
34Tazewell County3.7
35Jackson County3.6
36Crawford County3.6
37Edwards County3.6
38Schuyler County3.4
39Macon County3.4
40Winnebago County3.2
41Hamilton County3.1
41Pike County3.1
43Cass County3
44Lake County3
45Ogle County3
46St. Clair County3
47DuPage County2.9
48Marion County2.9
49Johnson County2.9
50McLean County2.9
51Adams County2.8
51Grundy County2.8
53Kane County2.8
54Clay County2.8
55Alexander County2.7
55McHenry County2.7
57Kendall County2.7
58Williamson County2.7
59Effingham County2.6
60LaSalle County2.6
61Edgar County2.6
61Madison County2.6
63Stark County2.5
64Logan County2.5
65Henderson County2.4
66Greene County2.4
67Will County2.3
68Knox County2.3
69Marshall County2.3
70Franklin County2.2
71Wabash County2.2
72Boone County2.1
73Champaign County2
74Jersey County2
75Lawrence County1.9
76Kankakee County1.9
77Fulton County1.8
78Perry County1.8
79Washington County1.7
80Monroe County1.7
81Lee County1.7
82Piatt County1.6
83Richland County1.6
84Henry County1.5
84Sangamon County1.5
86Christian County1.5
86Montgomery County1.5
88DeKalb County1.4
89Clark County1.4
89Warren County1.4
91Macoupin County1.4
92Shelby County1.3
93Scott County1.2
94Jasper County1
95Hancock County1
96De Witt County0.8
97Menard County0.8
98Putnam County0.8
99Gallatin County0.5
100Morgan County0.4
101Calhoun County0.2
102Hardin County0

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population under 19. 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs (Counties in Illinois by uninsured rate, under 19 (US, ACS), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Illinois by uninsured rate, under 19 (US, ACS), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/illinois-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Counties in Illinois by uninsured rate, under 19 (US, ACS), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/illinois-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Illinois by uninsured rate, under 19 (US, ACS), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19-acs/illinois-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Illinois by uninsured rate, under 19 (US, ACS), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/illinois-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Illinois by uninsured rate, under 19 (US, ACS), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-under-19-acs/illinois-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/illinois-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Illinois by uninsured rate, under 19 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, under 19 (US, ACS)?

Douglas County, with 23% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US, ACS)?

Hardin County, with 0% in 2021.

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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, under 19 (US, ACS): other rankings

Counties in Illinois: more rankings