Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Ohio

Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate)

Holmes County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 88 counties in 2021, at 27.3%. Delaware County had the lowest, at 5%. The median was 9% and the figure for Ohio was 8.9%. Source: the U.S. Census Bureau.

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Highest27.3Holmes County
Lowest5Delaware County
Median988 counties
Ohio8.9History

Map of counties, 2021

Adams County: 11 %Allen County: 9.5 %Ashland County: 10 %Ashtabula County: 12 %Athens County: 11 %Auglaize County: 7.3 %Belmont County: 9 %Brown County: 10.4 %Butler County: 9 %Carroll County: 9.9 %Champaign County: 9 %Clark County: 9.9 %Clermont County: 8.7 %Clinton County: 8.7 %Columbiana County: 10.6 %Coshocton County: 12.7 %Crawford County: 9.9 %Cuyahoga County: 8 %Darke County: 9.7 %Defiance County: 8.5 %Delaware County: 5 %Erie County: 8.9 %Fairfield County: 8.5 %Fayette County: 10.4 %Franklin County: 10.8 %Fulton County: 8.3 %Gallia County: 9.8 %Geauga County: 10.5 %Greene County: 7.3 %Guernsey County: 11.1 %Hamilton County: 8 %Hancock County: 8.3 %Hardin County: 10.5 %Harrison County: 10.2 %Henry County: 7.3 %Highland County: 12.1 %Hocking County: 10.2 %Holmes County: 27.3 %Huron County: 9.9 %Jackson County: 9.3 %Jefferson County: 8.9 %Knox County: 9.5 %Lake County: 7.5 %Lawrence County: 9.8 %Licking County: 7.5 %Logan County: 7.8 %Lorain County: 8.1 %Lucas County: 8.7 %Madison County: 8.6 %Mahoning County: 8.7 %Marion County: 8.2 %Medina County: 5.8 %Meigs County: 11.6 %Mercer County: 8.3 %Miami County: 8.1 %Monroe County: 10.8 %Montgomery County: 9.1 %Morgan County: 10.5 %Morrow County: 10.7 %Muskingum County: 10.2 %Noble County: 10.1 %Ottawa County: 8.1 %Paulding County: 9.8 %Perry County: 10.3 %Pickaway County: 9 %Pike County: 10 %Portage County: 8.5 %Preble County: 8.1 %Putnam County: 7.2 %Richland County: 10.6 %Ross County: 8.2 %Sandusky County: 8.5 %Scioto County: 9.3 %Seneca County: 8.6 %Shelby County: 7.8 %Stark County: 9 %Summit County: 8.6 %Trumbull County: 10.2 %Tuscarawas County: 11.7 %Union County: 5.5 %Van Wert County: 8.2 %Vinton County: 12.4 %Warren County: 5.9 %Washington County: 9.1 %Wayne County: 13.7 %Williams County: 8 %Wood County: 6.6 %Wyandot County: 7.5 %
  • Under 8
  • 8 to 8.5
  • 8.5 to 9
  • 9 to 9.9
  • 9.9 to 11
  • 11 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Holmes County: 27.3 %Holmes County27.3Wayne County: 13.7 %Wayne County13.7Coshocton County: 12.7 %Coshocton County12.7Vinton County: 12.4 %Vinton County12.4Highland County: 12.1 %Highland County12.1Ashtabula County: 12 %Ashtabula County12Tuscarawas County: 11.7 %Tuscarawas County11.7Meigs County: 11.6 %Meigs County11.6Guernsey County: 11.1 %Guernsey County11.1Adams County: 11 %Adams County11Athens County: 11 %Athens County11Franklin County: 10.8 %Franklin County10.8Monroe County: 10.8 %Monroe County10.8Morrow County: 10.7 %Morrow County10.7Columbiana County: 10.6 %Columbiana County10.6Richland County: 10.6 %Richland County10.6Geauga County: 10.5 %Geauga County10.5Hardin County: 10.5 %Hardin County10.5Morgan County: 10.5 %Morgan County10.5Brown County: 10.4 %Brown County10.4Fayette County: 10.4 %Fayette County10.4Perry County: 10.3 %Perry County10.3Harrison County: 10.2 %Harrison County10.2Hocking County: 10.2 %Hocking County10.2Muskingum County: 10.2 %Muskingum County10.2Trumbull County: 10.2 %Trumbull County10.2Noble County: 10.1 %Noble County10.1Ashland County: 10 %Ashland County10Pike County: 10 %Pike County10Carroll County: 9.9 %Carroll County9.9Clark County: 9.9 %Clark County9.9Crawford County: 9.9 %Crawford County9.9Huron County: 9.9 %Huron County9.9Gallia County: 9.8 %Gallia County9.8Lawrence County: 9.8 %Lawrence County9.8Paulding County: 9.8 %Paulding County9.8Darke County: 9.7 %Darke County9.7Allen County: 9.5 %Allen County9.5Knox County: 9.5 %Knox County9.5Jackson County: 9.3 %Jackson County9.3Holmes County: 27.3 %Holmes County27.3Wayne County: 13.7 %Wayne County13.7Coshocton County: 12.7 %Coshocton County12.7Vinton County: 12.4 %Vinton County12.4Highland County: 12.1 %Highland County12.1Ashtabula County: 12 %Ashtabula County12Tuscarawas County: 11.7 %Tuscarawas County11.7Meigs County: 11.6 %Meigs County11.6Guernsey County: 11.1 %Guernsey County11.1Adams County: 11 %Adams County11Athens County: 11 %Athens County11Franklin County: 10.8 %Franklin County10.8Monroe County: 10.8 %Monroe County10.8Morrow County: 10.7 %Morrow County10.7Columbiana County: 10.6 %Columbiana County10.6Richland County: 10.6 %Richland County10.6Geauga County: 10.5 %Geauga County10.5Hardin County: 10.5 %Hardin County10.5Morgan County: 10.5 %Morgan County10.5Brown County: 10.4 %Brown County10.4Fayette County: 10.4 %Fayette County10.4Perry County: 10.3 %Perry County10.3Harrison County: 10.2 %Harrison County10.2Hocking County: 10.2 %Hocking County10.2Muskingum County: 10.2 %Muskingum County10.2Trumbull County: 10.2 %Trumbull County10.2Noble County: 10.1 %Noble County10.1Ashland County: 10 %Ashland County10Pike County: 10 %Pike County10Carroll County: 9.9 %Carroll County9.9Clark County: 9.9 %Clark County9.9Crawford County: 9.9 %Crawford County9.9Huron County: 9.9 %Huron County9.9Gallia County: 9.8 %Gallia County9.8Lawrence County: 9.8 %Lawrence County9.8Paulding County: 9.8 %Paulding County9.8Darke County: 9.7 %Darke County9.7Allen County: 9.5 %Allen County9.5Knox County: 9.5 %Knox County9.5Jackson County: 9.3 %Jackson County9.3
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Holmes County27.3-3.1 pts
2Wayne County13.7+0.9 pts
3Coshocton County12.7-0.2 pts
4Vinton County12.4+2 pts
5Highland County12.1+0.4 pts
6Ashtabula County12+0.2 pts
7Tuscarawas County11.7-0.5 pts
8Meigs County11.6+1 pts
9Guernsey County11.1-0.8 pts
10Adams County11+0.1 pts
10Athens County11+0.5 pts
12Franklin County10.8-0.6 pts
12Monroe County10.8-0.1 pts
14Morrow County10.7+0.3 pts
15Columbiana County10.6-0.1 pts
15Richland County10.6+0.3 pts
17Geauga County10.5+0.3 pts
17Hardin County10.5-1.2 pts
17Morgan County10.50 pts
20Brown County10.4+1.1 pts
20Fayette County10.4+0.2 pts
22Perry County10.3+0.4 pts
23Harrison County10.2-0.7 pts
23Hocking County10.2+0.2 pts
23Muskingum County10.2+0.8 pts
23Trumbull County10.2-0.4 pts
27Noble County10.1-0.4 pts
28Ashland County10-0.1 pts
28Pike County100 pts
30Carroll County9.9-1.5 pts
30Clark County9.9+0.5 pts
30Crawford County9.9-0.3 pts
30Huron County9.9+0.2 pts
34Gallia County9.8-0.4 pts
34Lawrence County9.8+0.6 pts
34Paulding County9.8-0.2 pts
37Darke County9.7-0.7 pts
38Allen County9.5-0.6 pts
38Knox County9.50 pts
40Jackson County9.3-0.7 pts
40Scioto County9.3-0.1 pts
42Montgomery County9.1-0.9 pts
42Washington County9.1+0.3 pts
44Belmont County9+0.2 pts
44Butler County9-0.3 pts
44Champaign County9+0.2 pts
44Pickaway County9+1.2 pts
44Stark County9-0.1 pts
49Erie County8.9+0.4 pts
49Jefferson County8.9+0.5 pts
51Clermont County8.7-0.8 pts
51Clinton County8.7-0.6 pts
51Lucas County8.7-0.2 pts
51Mahoning County8.7-1.4 pts
55Madison County8.6+0.5 pts
55Seneca County8.6-0.6 pts
55Summit County8.6+0.4 pts
58Defiance County8.5-0.7 pts
58Fairfield County8.5-0.5 pts
58Portage County8.5-0.8 pts
58Sandusky County8.5-1.5 pts
62Fulton County8.3-1.7 pts
62Hancock County8.3-0.9 pts
62Mercer County8.3-0.2 pts
65Marion County8.2-0.7 pts
65Ross County8.2-1 pts
65Van Wert County8.2-0.8 pts
68Lorain County8.1-0.6 pts
68Miami County8.1+0.3 pts
68Ottawa County8.1-1.1 pts
68Preble County8.1-0.2 pts
72Cuyahoga County8-1 pts
72Hamilton County80 pts
72Williams County8-1.2 pts
75Logan County7.8-0.8 pts
75Shelby County7.8-0.5 pts
77Lake County7.5-1.6 pts
77Licking County7.5-1.1 pts
77Wyandot County7.5-1.3 pts
80Auglaize County7.3-1.2 pts
80Greene County7.3-0.3 pts
80Henry County7.3-1.9 pts
83Putnam County7.2-1.6 pts
84Wood County6.6-1.5 pts
85Warren County5.9-0.2 pts
86Medina County5.8-1.2 pts
87Union County5.5-0.6 pts
88Delaware County5-0.5 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. 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). Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/ohio-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/ohio-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/ohio-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/ohio-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate), 2021
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/ohio-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/ohio-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  -
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Rank Counties in Ohio by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Holmes County, with 27.3% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Delaware County, with 5% 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, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Ohio: more rankings