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

Counties in Ohio by uninsured rate, all ages (US)

Holmes County had the highest uninsured rate, all ages (US) of 88 counties in 2023, at 42.3%. Wyandot County had the lowest, at 3.2%. The median was 6% and the figure for Ohio was 6.4%. Source: the U.S. Census Bureau.

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Highest42.3Holmes County
Lowest3.2Wyandot County
Median688 counties
Ohio6.4History

Map of counties, 2023

Adams County: 7.8 %Allen County: 6.3 %Ashland County: 8.6 %Ashtabula County: 9.5 %Athens County: 5.8 %Auglaize County: 3.9 %Belmont County: 6 %Brown County: 6.6 %Butler County: 6.3 %Carroll County: 9.2 %Champaign County: 5.1 %Clark County: 6.8 %Clermont County: 5.7 %Clinton County: 6.2 %Columbiana County: 6.9 %Coshocton County: 10.9 %Crawford County: 6.3 %Cuyahoga County: 5.5 %Darke County: 6.5 %Defiance County: 8.8 %Delaware County: 4.5 %Erie County: 5.4 %Fairfield County: 6.3 %Fayette County: 7.8 %Franklin County: 8.4 %Fulton County: 5.7 %Gallia County: 10.4 %Geauga County: 8.6 %Greene County: 5.1 %Guernsey County: 10 %Hamilton County: 5.8 %Hancock County: 4.6 %Hardin County: 11.9 %Harrison County: 12.7 %Henry County: 5.4 %Highland County: 8.9 %Hocking County: 6.3 %Holmes County: 42.3 %Huron County: 6.9 %Jackson County: 6.5 %Jefferson County: 5.3 %Knox County: 11.3 %Lake County: 4.9 %Lawrence County: 5.1 %Licking County: 5.4 %Logan County: 5.8 %Lorain County: 5.4 %Lucas County: 5.3 %Madison County: 7.7 %Mahoning County: 4.9 %Marion County: 5.3 %Medina County: 4.1 %Meigs County: 7.1 %Mercer County: 3.8 %Miami County: 5 %Monroe County: 7.9 %Montgomery County: 6.6 %Morgan County: 6.6 %Morrow County: 8.9 %Muskingum County: 5.9 %Noble County: 7.2 %Ottawa County: 4.3 %Paulding County: 5.6 %Perry County: 8.2 %Pickaway County: 5.6 %Pike County: 5.6 %Portage County: 5.2 %Preble County: 5.2 %Putnam County: 3.6 %Richland County: 6.9 %Ross County: 6.3 %Sandusky County: 5.7 %Scioto County: 5.2 %Seneca County: 5.3 %Shelby County: 4.7 %Stark County: 5.7 %Summit County: 5.6 %Trumbull County: 6.9 %Tuscarawas County: 8.7 %Union County: 4.3 %Van Wert County: 3.5 %Vinton County: 7.1 %Warren County: 3.7 %Washington County: 6.3 %Wayne County: 14 %Williams County: 5.3 %Wood County: 4.1 %Wyandot County: 3.2 %
  • Under 4.9
  • 4.9 to 5.4
  • 5.4 to 6
  • 6 to 6.8
  • 6.8 to 8.6
  • 8.6 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

Holmes County: 42.3 %Holmes County42.3Wayne County: 14 %Wayne County14Harrison County: 12.7 %Harrison County12.7Hardin County: 11.9 %Hardin County11.9Knox County: 11.3 %Knox County11.3Coshocton County: 10.9 %Coshocton County10.9Gallia County: 10.4 %Gallia County10.4Guernsey County: 10 %Guernsey County10Ashtabula County: 9.5 %Ashtabula County9.5Carroll County: 9.2 %Carroll County9.2Highland County: 8.9 %Highland County8.9Morrow County: 8.9 %Morrow County8.9Defiance County: 8.8 %Defiance County8.8Tuscarawas County: 8.7 %Tuscarawas County8.7Geauga County: 8.6 %Geauga County8.6Ashland County: 8.6 %Ashland County8.6Franklin County: 8.4 %Franklin County8.4Perry County: 8.2 %Perry County8.2Monroe County: 7.9 %Monroe County7.9Adams County: 7.8 %Adams County7.8Fayette County: 7.8 %Fayette County7.8Madison County: 7.7 %Madison County7.7Noble County: 7.2 %Noble County7.2Vinton County: 7.1 %Vinton County7.1Meigs County: 7.1 %Meigs County7.1Huron County: 6.9 %Huron County6.9Trumbull County: 6.9 %Trumbull County6.9Richland County: 6.9 %Richland County6.9Columbiana County: 6.9 %Columbiana County6.9Clark County: 6.8 %Clark County6.8Brown County: 6.6 %Brown County6.6Montgomery County: 6.6 %Montgomery County6.6Morgan County: 6.6 %Morgan County6.6Darke County: 6.5 %Darke County6.5Jackson County: 6.5 %Jackson County6.5Hocking County: 6.3 %Hocking County6.3Ross County: 6.3 %Ross County6.3Crawford County: 6.3 %Crawford County6.3Butler County: 6.3 %Butler County6.3Allen County: 6.3 %Allen County6.3Holmes County: 42.3 %Holmes County42.3Wayne County: 14 %Wayne County14Harrison County: 12.7 %Harrison County12.7Hardin County: 11.9 %Hardin County11.9Knox County: 11.3 %Knox County11.3Coshocton County: 10.9 %Coshocton County10.9Gallia County: 10.4 %Gallia County10.4Guernsey County: 10 %Guernsey County10Ashtabula County: 9.5 %Ashtabula County9.5Carroll County: 9.2 %Carroll County9.2Highland County: 8.9 %Highland County8.9Morrow County: 8.9 %Morrow County8.9Defiance County: 8.8 %Defiance County8.8Tuscarawas County: 8.7 %Tuscarawas County8.7Geauga County: 8.6 %Geauga County8.6Ashland County: 8.6 %Ashland County8.6Franklin County: 8.4 %Franklin County8.4Perry County: 8.2 %Perry County8.2Monroe County: 7.9 %Monroe County7.9Adams County: 7.8 %Adams County7.8Fayette County: 7.8 %Fayette County7.8Madison County: 7.7 %Madison County7.7Noble County: 7.2 %Noble County7.2Vinton County: 7.1 %Vinton County7.1Meigs County: 7.1 %Meigs County7.1Huron County: 6.9 %Huron County6.9Trumbull County: 6.9 %Trumbull County6.9Richland County: 6.9 %Richland County6.9Columbiana County: 6.9 %Columbiana County6.9Clark County: 6.8 %Clark County6.8Brown County: 6.6 %Brown County6.6Montgomery County: 6.6 %Montgomery County6.6Morgan County: 6.6 %Morgan County6.6Darke County: 6.5 %Darke County6.5Jackson County: 6.5 %Jackson County6.5Hocking County: 6.3 %Hocking County6.3Ross County: 6.3 %Ross County6.3Crawford County: 6.3 %Crawford County6.3Butler County: 6.3 %Butler County6.3Allen County: 6.3 %Allen County6.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Holmes County42.3+0.5 pts
2Wayne County14-0.1 pts
3Harrison County12.7-0.2 pts
4Hardin County11.9-0.5 pts
5Knox County11.3+0.8 pts
6Coshocton County10.9+0.6 pts
7Gallia County10.4-0.6 pts
8Guernsey County10+0.4 pts
9Ashtabula County9.5-0.5 pts
10Carroll County9.2-1.3 pts
11Highland County8.9-0.2 pts
12Morrow County8.9-1.1 pts
13Defiance County8.8+1.9 pts
14Tuscarawas County8.7+0.1 pts
15Geauga County8.6+0.5 pts
16Ashland County8.6+0.5 pts
17Franklin County8.4+0.4 pts
18Perry County8.2+0.7 pts
19Monroe County7.9+0.8 pts
20Adams County7.8-0.7 pts
21Fayette County7.8-0.1 pts
22Madison County7.7+0.8 pts
23Noble County7.2-1 pts
24Vinton County7.1-0.7 pts
25Meigs County7.1-1.2 pts
26Huron County6.9+0.1 pts
26Trumbull County6.9-0 pts
28Richland County6.9+0.1 pts
29Columbiana County6.9-0.6 pts
30Clark County6.8-0.1 pts
31Brown County6.6+0.1 pts
32Montgomery County6.6-0.3 pts
32Morgan County6.6-0.7 pts
34Darke County6.5-0.4 pts
35Jackson County6.5-0.8 pts
36Hocking County6.3-0.7 pts
36Ross County6.3-0.3 pts
38Crawford County6.3-0.4 pts
39Butler County6.30 pts
40Allen County6.3+0.1 pts
41Fairfield County6.3+0.3 pts
42Washington County6.3-0.5 pts
43Clinton County6.2+0.5 pts
44Belmont County6-0.5 pts
45Muskingum County5.9-0.2 pts
46Logan County5.8+0.7 pts
47Hamilton County5.8+0.2 pts
48Athens County5.8-0.2 pts
49Sandusky County5.7+0.3 pts
50Clermont County5.7+0.2 pts
51Stark County5.7-0.2 pts
52Fulton County5.7-0 pts
53Pike County5.6+0.2 pts
53Summit County5.6-0.1 pts
55Pickaway County5.6+0.1 pts
56Paulding County5.6-0.3 pts
57Cuyahoga County5.5-0 pts
58Licking County5.4+0.1 pts
59Erie County5.4-0.1 pts
60Henry County5.4-0 pts
60Lorain County5.4-0.3 pts
62Lucas County5.3-0.5 pts
62Marion County5.3-0.2 pts
62Williams County5.3-0.1 pts
65Jefferson County5.3+0.4 pts
66Seneca County5.3-0.1 pts
67Portage County5.2-0.3 pts
68Preble County5.2-0.2 pts
68Scioto County5.2-0.9 pts
70Greene County5.1-0 pts
71Lawrence County5.1+0.1 pts
72Champaign County5.1+0.1 pts
73Miami County5-0.1 pts
74Lake County4.9-0.3 pts
75Mahoning County4.9-0.2 pts
76Shelby County4.7+0.3 pts
77Hancock County4.6-0.2 pts
78Delaware County4.5+0.2 pts
79Ottawa County4.3-0.2 pts
80Union County4.3-0.3 pts
81Medina County4.1+0.4 pts
82Wood County4.1-0.3 pts
83Auglaize County3.9-0.3 pts
84Mercer County3.8-0.5 pts
85Warren County3.7-0 pts
86Putnam County3.6+0.5 pts
87Van Wert County3.5-0.2 pts
88Wyandot County3.2-0.4 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/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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in Ohio by uninsured rate, all ages (US), 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Ohio by uninsured rate, all ages (US), 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/ohio-counties?period=2023. 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 Ohio by uninsured rate, all ages (US), 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/ohio-counties?period=2023.

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 Ohio by uninsured rate, all ages (US), 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/ohio-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2023,
  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 Ohio by uninsured rate, all ages (US), 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/ohio-counties?period=2023. 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/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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Ohio by uninsured rate, all ages (US), 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/ohio-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/ohio-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

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

Holmes County, with 42.3% in 2023, according to the U.S. Census Bureau.

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

Wyandot County, with 3.2% 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 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 Ohio: more rankings