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 2021, at 41.9%. Putnam County had the lowest, at 2.7%. The median was 6.2% and the figure for Ohio was 6.3%. Source: the U.S. Census Bureau.

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Highest41.9Holmes County
Lowest2.7Putnam County
Median6.288 counties
Ohio6.3History

Map of counties, 2021

Adams County: 8.6 %Allen County: 6.6 %Ashland County: 8.6 %Ashtabula County: 9.6 %Athens County: 6 %Auglaize County: 4 %Belmont County: 6 %Brown County: 7 %Butler County: 6.2 %Carroll County: 9.4 %Champaign County: 4.9 %Clark County: 6.5 %Clermont County: 5.6 %Clinton County: 6.2 %Columbiana County: 6.4 %Coshocton County: 11.2 %Crawford County: 6.5 %Cuyahoga County: 5.5 %Darke County: 7 %Defiance County: 6.3 %Delaware County: 4.4 %Erie County: 5.8 %Fairfield County: 6.2 %Fayette County: 7.2 %Franklin County: 7.8 %Fulton County: 5.4 %Gallia County: 10.6 %Geauga County: 8.4 %Greene County: 4.9 %Guernsey County: 10.4 %Hamilton County: 5.7 %Hancock County: 4.7 %Hardin County: 10.9 %Harrison County: 12.3 %Henry County: 5.4 %Highland County: 10.5 %Hocking County: 6.4 %Holmes County: 41.9 %Huron County: 6.3 %Jackson County: 6.6 %Jefferson County: 5.4 %Knox County: 9.6 %Lake County: 5.1 %Lawrence County: 5.2 %Licking County: 5.7 %Logan County: 4.9 %Lorain County: 5.3 %Lucas County: 6 %Madison County: 6.2 %Mahoning County: 5 %Marion County: 5.6 %Medina County: 3.5 %Meigs County: 7.9 %Mercer County: 4.1 %Miami County: 4.9 %Monroe County: 8.2 %Montgomery County: 6.8 %Morgan County: 6.9 %Morrow County: 11 %Muskingum County: 6.3 %Noble County: 7.6 %Ottawa County: 4 %Paulding County: 5.5 %Perry County: 6.7 %Pickaway County: 5.9 %Pike County: 4.1 %Portage County: 5.7 %Preble County: 5.1 %Putnam County: 2.7 %Richland County: 7.7 %Ross County: 6 %Sandusky County: 6 %Scioto County: 6.3 %Seneca County: 5.3 %Shelby County: 4.9 %Stark County: 6.2 %Summit County: 5.6 %Trumbull County: 7 %Tuscarawas County: 8.3 %Union County: 4.7 %Van Wert County: 4.1 %Vinton County: 8.8 %Warren County: 3.6 %Washington County: 7 %Wayne County: 14.1 %Williams County: 5.3 %Wood County: 4.3 %Wyandot County: 4 %
  • Under 4.9
  • 4.9 to 5.5
  • 5.5 to 6.2
  • 6.2 to 6.7
  • 6.7 to 8.5
  • 8.5 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

Holmes County: 41.9 %Holmes County41.9Wayne County: 14.1 %Wayne County14.1Harrison County: 12.3 %Harrison County12.3Coshocton County: 11.2 %Coshocton County11.2Morrow County: 11 %Morrow County11Hardin County: 10.9 %Hardin County10.9Gallia County: 10.6 %Gallia County10.6Highland County: 10.5 %Highland County10.5Guernsey County: 10.4 %Guernsey County10.4Knox County: 9.6 %Knox County9.6Ashtabula County: 9.6 %Ashtabula County9.6Carroll County: 9.4 %Carroll County9.4Vinton County: 8.8 %Vinton County8.8Ashland County: 8.6 %Ashland County8.6Adams County: 8.6 %Adams County8.6Geauga County: 8.4 %Geauga County8.4Tuscarawas County: 8.3 %Tuscarawas County8.3Monroe County: 8.2 %Monroe County8.2Meigs County: 7.9 %Meigs County7.9Franklin County: 7.8 %Franklin County7.8Richland County: 7.7 %Richland County7.7Noble County: 7.6 %Noble County7.6Fayette County: 7.2 %Fayette County7.2Brown County: 7 %Brown County7Washington County: 7 %Washington County7Darke County: 7 %Darke County7Trumbull County: 7 %Trumbull County7Morgan County: 6.9 %Morgan County6.9Montgomery County: 6.8 %Montgomery County6.8Perry County: 6.7 %Perry County6.7Jackson County: 6.6 %Jackson County6.6Allen County: 6.6 %Allen County6.6Crawford County: 6.5 %Crawford County6.5Clark County: 6.5 %Clark County6.5Columbiana County: 6.4 %Columbiana County6.4Hocking County: 6.4 %Hocking County6.4Scioto County: 6.3 %Scioto County6.3Huron County: 6.3 %Huron County6.3Defiance County: 6.3 %Defiance County6.3Muskingum County: 6.3 %Muskingum County6.3Holmes County: 41.9 %Holmes County41.9Wayne County: 14.1 %Wayne County14.1Harrison County: 12.3 %Harrison County12.3Coshocton County: 11.2 %Coshocton County11.2Morrow County: 11 %Morrow County11Hardin County: 10.9 %Hardin County10.9Gallia County: 10.6 %Gallia County10.6Highland County: 10.5 %Highland County10.5Guernsey County: 10.4 %Guernsey County10.4Knox County: 9.6 %Knox County9.6Ashtabula County: 9.6 %Ashtabula County9.6Carroll County: 9.4 %Carroll County9.4Vinton County: 8.8 %Vinton County8.8Ashland County: 8.6 %Ashland County8.6Adams County: 8.6 %Adams County8.6Geauga County: 8.4 %Geauga County8.4Tuscarawas County: 8.3 %Tuscarawas County8.3Monroe County: 8.2 %Monroe County8.2Meigs County: 7.9 %Meigs County7.9Franklin County: 7.8 %Franklin County7.8Richland County: 7.7 %Richland County7.7Noble County: 7.6 %Noble County7.6Fayette County: 7.2 %Fayette County7.2Brown County: 7 %Brown County7Washington County: 7 %Washington County7Darke County: 7 %Darke County7Trumbull County: 7 %Trumbull County7Morgan County: 6.9 %Morgan County6.9Montgomery County: 6.8 %Montgomery County6.8Perry County: 6.7 %Perry County6.7Jackson County: 6.6 %Jackson County6.6Allen County: 6.6 %Allen County6.6Crawford County: 6.5 %Crawford County6.5Clark County: 6.5 %Clark County6.5Columbiana County: 6.4 %Columbiana County6.4Hocking County: 6.4 %Hocking County6.4Scioto County: 6.3 %Scioto County6.3Huron County: 6.3 %Huron County6.3Defiance County: 6.3 %Defiance County6.3Muskingum County: 6.3 %Muskingum County6.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Holmes County41.9
2Wayne County14.1
3Harrison County12.3
4Coshocton County11.2
5Morrow County11
6Hardin County10.9
7Gallia County10.6
8Highland County10.5
9Guernsey County10.4
10Knox County9.6
11Ashtabula County9.6
12Carroll County9.4
13Vinton County8.8
14Ashland County8.6
15Adams County8.6
16Geauga County8.4
17Tuscarawas County8.3
18Monroe County8.2
19Meigs County7.9
20Franklin County7.8
21Richland County7.7
22Noble County7.6
23Fayette County7.2
24Brown County7
25Washington County7
26Darke County7
26Trumbull County7
28Morgan County6.9
29Montgomery County6.8
30Perry County6.7
31Jackson County6.6
32Allen County6.6
33Crawford County6.5
34Clark County6.5
35Columbiana County6.4
36Hocking County6.4
37Scioto County6.3
38Huron County6.3
39Defiance County6.3
40Muskingum County6.3
41Madison County6.2
42Butler County6.2
43Stark County6.2
44Clinton County6.2
45Fairfield County6.2
46Belmont County6
46Sandusky County6
48Ross County6
49Athens County6
50Lucas County6
51Pickaway County5.9
52Erie County5.8
53Licking County5.7
54Hamilton County5.7
55Portage County5.7
56Clermont County5.6
56Marion County5.6
58Summit County5.6
59Paulding County5.5
60Cuyahoga County5.5
61Henry County5.4
62Fulton County5.4
63Jefferson County5.4
64Lorain County5.3
65Seneca County5.3
66Williams County5.3
67Lawrence County5.2
68Lake County5.1
69Preble County5.1
70Mahoning County5
71Champaign County4.9
72Greene County4.9
73Miami County4.9
73Shelby County4.9
75Logan County4.9
76Hancock County4.7
77Union County4.7
78Delaware County4.4
79Wood County4.3
80Pike County4.1
81Mercer County4.1
82Van Wert County4.1
83Wyandot County4
84Auglaize County4
84Ottawa County4
86Warren County3.6
87Medina County3.5
88Putnam County2.7

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/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 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), 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 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), 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/ohio-counties?period=2021. 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), 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/ohio-counties?period=2021.

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), 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/ohio-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2021,
  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), 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/ohio-counties?period=2021. 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/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 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), 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/ohio-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/ohio-counties?period=2021.
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/2021/table-based-SF/data/5YRData/acsdt5y2021-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 41.9% in 2021, according to the U.S. Census Bureau.

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

Putnam County, with 2.7% 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 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