Data / Rankings / Current asthma in adults, local model estimate / Counties in Ohio

Counties in Ohio by current asthma in adults, local model estimate

Athens County had the highest current asthma in adults, local model estimate of 88 counties in 2021, at 11.5%. Delaware County had the lowest, at 9%. The median was 10.3%. Source: the Centers for Disease Control and Prevention.

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Highest11.5Athens County
Lowest9Delaware County
Median10.388 counties

Map of counties, 2021

Adams County: 11.1 %Allen County: 10.5 %Ashland County: 10.4 %Ashtabula County: 10.8 %Athens County: 11.5 %Auglaize County: 9.7 %Belmont County: 10.1 %Brown County: 10.5 %Butler County: 10.3 %Carroll County: 10.1 %Champaign County: 10.2 %Clark County: 10.7 %Clermont County: 10 %Clinton County: 10.6 %Columbiana County: 10.2 %Coshocton County: 11 %Crawford County: 10.5 %Cuyahoga County: 10.6 %Darke County: 10.2 %Defiance County: 10 %Delaware County: 9 %Erie County: 10.1 %Fairfield County: 10.1 %Fayette County: 10.8 %Franklin County: 10.3 %Fulton County: 9.9 %Gallia County: 10.8 %Geauga County: 9.7 %Greene County: 10 %Guernsey County: 10.7 %Hamilton County: 10.5 %Hancock County: 9.8 %Hardin County: 10.6 %Harrison County: 10.4 %Henry County: 9.9 %Highland County: 10.7 %Hocking County: 10.6 %Holmes County: 11.5 %Huron County: 10.4 %Jackson County: 10.9 %Jefferson County: 10.7 %Knox County: 10.4 %Lake County: 9.7 %Lawrence County: 11 %Licking County: 10.1 %Logan County: 10.2 %Lorain County: 10.4 %Lucas County: 11.1 %Madison County: 9.9 %Mahoning County: 10.5 %Marion County: 10.6 %Medina County: 9.6 %Meigs County: 11.1 %Mercer County: 9.6 %Miami County: 9.9 %Monroe County: 10.3 %Montgomery County: 10.9 %Morgan County: 11 %Morrow County: 10.3 %Muskingum County: 10.6 %Noble County: 9.7 %Ottawa County: 9.7 %Paulding County: 10.3 %Perry County: 10.5 %Pickaway County: 10.2 %Pike County: 11.3 %Portage County: 10.4 %Preble County: 10 %Putnam County: 9.4 %Richland County: 10.4 %Ross County: 10.5 %Sandusky County: 10.1 %Scioto County: 11.3 %Seneca County: 10 %Shelby County: 10.3 %Stark County: 10.3 %Summit County: 10.4 %Trumbull County: 10.7 %Tuscarawas County: 10.4 %Union County: 9.6 %Van Wert County: 10.2 %Vinton County: 11.2 %Warren County: 9.3 %Washington County: 10.3 %Wayne County: 10.3 %Williams County: 10.2 %Wood County: 10.3 %Wyandot County: 9.9 %
  • Under 9.9
  • 9.9 to 10
  • 10 to 11
  • 11 and over
%, 2021. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Athens County: 11.5 %Athens County11.5Holmes County: 11.5 %Holmes County11.5Pike County: 11.3 %Pike County11.3Scioto County: 11.3 %Scioto County11.3Vinton County: 11.2 %Vinton County11.2Adams County: 11.1 %Adams County11.1Lucas County: 11.1 %Lucas County11.1Meigs County: 11.1 %Meigs County11.1Coshocton County: 11 %Coshocton County11Lawrence County: 11 %Lawrence County11Morgan County: 11 %Morgan County11Jackson County: 10.9 %Jackson County10.9Montgomery County: 10.9 %Montgomery County10.9Ashtabula County: 10.8 %Ashtabula County10.8Fayette County: 10.8 %Fayette County10.8Gallia County: 10.8 %Gallia County10.8Clark County: 10.7 %Clark County10.7Guernsey County: 10.7 %Guernsey County10.7Highland County: 10.7 %Highland County10.7Jefferson County: 10.7 %Jefferson County10.7Trumbull County: 10.7 %Trumbull County10.7Clinton County: 10.6 %Clinton County10.6Cuyahoga County: 10.6 %Cuyahoga County10.6Hardin County: 10.6 %Hardin County10.6Hocking County: 10.6 %Hocking County10.6Marion County: 10.6 %Marion County10.6Muskingum County: 10.6 %Muskingum County10.6Allen County: 10.5 %Allen County10.5Brown County: 10.5 %Brown County10.5Crawford County: 10.5 %Crawford County10.5Hamilton County: 10.5 %Hamilton County10.5Mahoning County: 10.5 %Mahoning County10.5Perry County: 10.5 %Perry County10.5Ross County: 10.5 %Ross County10.5Ashland County: 10.4 %Ashland County10.4Harrison County: 10.4 %Harrison County10.4Huron County: 10.4 %Huron County10.4Knox County: 10.4 %Knox County10.4Lorain County: 10.4 %Lorain County10.4Portage County: 10.4 %Portage County10.4Athens County: 11.5 %Athens County11.5Holmes County: 11.5 %Holmes County11.5Pike County: 11.3 %Pike County11.3Scioto County: 11.3 %Scioto County11.3Vinton County: 11.2 %Vinton County11.2Adams County: 11.1 %Adams County11.1Lucas County: 11.1 %Lucas County11.1Meigs County: 11.1 %Meigs County11.1Coshocton County: 11 %Coshocton County11Lawrence County: 11 %Lawrence County11Morgan County: 11 %Morgan County11Jackson County: 10.9 %Jackson County10.9Montgomery County: 10.9 %Montgomery County10.9Ashtabula County: 10.8 %Ashtabula County10.8Fayette County: 10.8 %Fayette County10.8Gallia County: 10.8 %Gallia County10.8Clark County: 10.7 %Clark County10.7Guernsey County: 10.7 %Guernsey County10.7Highland County: 10.7 %Highland County10.7Jefferson County: 10.7 %Jefferson County10.7Trumbull County: 10.7 %Trumbull County10.7Clinton County: 10.6 %Clinton County10.6Cuyahoga County: 10.6 %Cuyahoga County10.6Hardin County: 10.6 %Hardin County10.6Hocking County: 10.6 %Hocking County10.6Marion County: 10.6 %Marion County10.6Muskingum County: 10.6 %Muskingum County10.6Allen County: 10.5 %Allen County10.5Brown County: 10.5 %Brown County10.5Crawford County: 10.5 %Crawford County10.5Hamilton County: 10.5 %Hamilton County10.5Mahoning County: 10.5 %Mahoning County10.5Perry County: 10.5 %Perry County10.5Ross County: 10.5 %Ross County10.5Ashland County: 10.4 %Ashland County10.4Harrison County: 10.4 %Harrison County10.4Huron County: 10.4 %Huron County10.4Knox County: 10.4 %Knox County10.4Lorain County: 10.4 %Lorain County10.4Portage County: 10.4 %Portage County10.4
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Athens County11.5
1Holmes County11.5
3Pike County11.3
3Scioto County11.3
5Vinton County11.2
6Adams County11.1
6Lucas County11.1
6Meigs County11.1
9Coshocton County11
9Lawrence County11
9Morgan County11
12Jackson County10.9
12Montgomery County10.9
14Ashtabula County10.8
14Fayette County10.8
14Gallia County10.8
17Clark County10.7
17Guernsey County10.7
17Highland County10.7
17Jefferson County10.7
17Trumbull County10.7
22Clinton County10.6
22Cuyahoga County10.6
22Hardin County10.6
22Hocking County10.6
22Marion County10.6
22Muskingum County10.6
28Allen County10.5
28Brown County10.5
28Crawford County10.5
28Hamilton County10.5
28Mahoning County10.5
28Perry County10.5
28Ross County10.5
35Ashland County10.4
35Harrison County10.4
35Huron County10.4
35Knox County10.4
35Lorain County10.4
35Portage County10.4
35Richland County10.4
35Summit County10.4
35Tuscarawas County10.4
44Butler County10.3
44Franklin County10.3
44Monroe County10.3
44Morrow County10.3
44Paulding County10.3
44Shelby County10.3
44Stark County10.3
44Washington County10.3
44Wayne County10.3
44Wood County10.3
54Champaign County10.2
54Columbiana County10.2
54Darke County10.2
54Logan County10.2
54Pickaway County10.2
54Van Wert County10.2
54Williams County10.2
61Belmont County10.1
61Carroll County10.1
61Erie County10.1
61Fairfield County10.1
61Licking County10.1
61Sandusky County10.1
67Clermont County10
67Defiance County10
67Greene County10
67Preble County10
67Seneca County10
72Fulton County9.9
72Henry County9.9
72Madison County9.9
72Miami County9.9
72Wyandot County9.9
77Hancock County9.8
78Auglaize County9.7
78Geauga County9.7
78Lake County9.7
78Noble County9.7
78Ottawa County9.7
83Medina County9.6
83Mercer County9.6
83Union County9.6
86Putnam County9.4
87Warren County9.3
88Delaware County9

Other periods

About this ranking

Percentage of adults who have ever been told by a doctor, nurse or other health professional that they have asthma and say they still have it. Model-based estimate for adults aged 18 and over from CDC PLACES. Crude prevalence, not age-adjusted.

US counties and cities (incorporated places of 10,000 or more). CDC PLACES combines Behavioral Risk Factor Surveillance System (BRFSS) answers with local population data through multilevel regression and poststratification, so a county or city value is a model estimate, not a survey count. The year is the BRFSS survey year, not the release year. CDC says the method does not support tracking change in a place over time, and each annual release can change the model, so values for different years are not strictly comparable. A state is missing in a year when its BRFSS data did not meet standards (Kentucky and Pennsylvania in 2023, Florida in 2021). Connecticut counties appear as its nine planning regions from 2022; its eight former counties are not served. City values for 2021 come from the 2023 release, built on 2010 Census place boundaries; later years use 2020 boundaries.

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

Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.

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

Centers for Disease Control and Prevention. (2025). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence (Counties in Ohio by current asthma in adults, local model estimate, 2021) [Data set]. Retrieved October 12, 2026, from https://www.cdc.gov/places/

MLA 9

PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence, Counties in Ohio by current asthma in adults, local model estimate, 2021. Centers for Disease Control and Prevention, 4 Dec. 2025, https://www.cdc.gov/places/. Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/ohio-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

Centers for Disease Control and Prevention. 2025. PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. Counties in Ohio by current asthma in adults, local model estimate, 2021. Dataset. Accessed October 12, 2026. https://www.cdc.gov/places/. Also distributed by Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/ohio-counties?period=2021.

Harvard

Centers for Disease Control and Prevention (2025) PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence, Counties in Ohio by current asthma in adults, local model estimate, 2021 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-asthma-rate-county-estimate/ohio-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_ohio_by_2021,
  author = {{Centers for Disease Control and Prevention}},
  title = {{PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence: Counties in Ohio by current asthma in adults, local model estimate, 2021}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www.cdc.gov/places/},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/ohio-counties?period=2021. Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.},
}
RIS
TY  - DATA
AU  - Centers for Disease Control and Prevention
TI  - PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence: Counties in Ohio by current asthma in adults, local model estimate, 2021
PY  - 2025
DA  - 2025/12/04
PB  - Centers for Disease Control and Prevention
DB  - Invokely
UR  - https://www.cdc.gov/places/
L2  - https://invokely.ai/rankings/adult-asthma-rate-county-estimate/ohio-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/ohio-counties?period=2021.
N1  - Publisher attribution: Centers for Disease Control and Prevention (CDC). PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. https://www.cdc.gov/places/. Retrieved 2026-10-12. These data are available free from CDC. Use does not imply endorsement by CDC, ATSDR, HHS or the United States Government.
ER  -
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Rank Counties in Ohio by current asthma in adults, local model estimate using official data, and cite the source.
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Questions

Which county has the highest current asthma in adults, local model estimate?

Athens County, with 11.5% in 2021, according to the Centers for Disease Control and Prevention.

Which county has the lowest current asthma in adults, local model estimate?

Delaware County, with 9% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Centers for Disease Control and Prevention, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), current asthma in adults, crude prevalence. Retrieved 2026-10-12.

Current asthma in adults, local model estimate: other rankings

Counties in Ohio: more rankings