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

Counties in Pennsylvania by current asthma in adults, local model estimate, 2022

Philadelphia County had the highest current asthma in adults, local model estimate of 67 counties in 2022, at 11.6%. Chester County had the lowest, at 9.7%. The median was 10.6%. Source: the Centers for Disease Control and Prevention.

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Highest11.6Philadelphia County
Lowest9.7Chester County
Median10.667 counties

Map of counties, 2022

Adams County: 10.3 %Allegheny County: 10.5 %Armstrong County: 10.9 %Beaver County: 10.6 %Bedford County: 10.6 %Berks County: 10.4 %Blair County: 11.2 %Bradford County: 10.7 %Bucks County: 10.2 %Butler County: 10 %Cambria County: 10.7 %Cameron County: 11 %Carbon County: 10.5 %Centre County: 10.3 %Chester County: 9.7 %Clarion County: 11 %Clearfield County: 10.9 %Clinton County: 11.2 %Columbia County: 11.1 %Crawford County: 11 %Cumberland County: 10.3 %Dauphin County: 11 %Delaware County: 10.3 %Elk County: 10.6 %Erie County: 10.7 %Fayette County: 11.3 %Forest County: 10.1 %Franklin County: 10.4 %Fulton County: 10.4 %Greene County: 10.9 %Huntingdon County: 10.4 %Indiana County: 11.1 %Jefferson County: 11 %Juniata County: 10.8 %Lackawanna County: 10.4 %Lancaster County: 10.6 %Lawrence County: 10.7 %Lebanon County: 10.4 %Lehigh County: 10.6 %Luzerne County: 11.1 %Lycoming County: 10.4 %McKean County: 10.7 %Mercer County: 11.2 %Mifflin County: 11.2 %Monroe County: 10.6 %Montgomery County: 9.9 %Montour County: 10.7 %Northampton County: 10.2 %Northumberland County: 10.7 %Perry County: 10.6 %Philadelphia County: 11.6 %Pike County: 10.1 %Potter County: 10.5 %Schuylkill County: 10.9 %Snyder County: 10.4 %Somerset County: 10.4 %Sullivan County: 11.3 %Susquehanna County: 10 %Tioga County: 11.1 %Union County: 10.6 %Venango County: 10.8 %Warren County: 10.7 %Washington County: 11.1 %Wayne County: 10.7 %Westmoreland County: 10.2 %Wyoming County: 11 %York County: 10.4 %
  • Under 10
  • 10 to 11
  • 11 and over
%, 2022. 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, 2022

Philadelphia County: 11.6 %Philadelphia County11.6Fayette County: 11.3 %Fayette County11.3Sullivan County: 11.3 %Sullivan County11.3Blair County: 11.2 %Blair County11.2Clinton County: 11.2 %Clinton County11.2Mercer County: 11.2 %Mercer County11.2Mifflin County: 11.2 %Mifflin County11.2Columbia County: 11.1 %Columbia County11.1Indiana County: 11.1 %Indiana County11.1Luzerne County: 11.1 %Luzerne County11.1Tioga County: 11.1 %Tioga County11.1Washington County: 11.1 %Washington County11.1Cameron County: 11 %Cameron County11Clarion County: 11 %Clarion County11Crawford County: 11 %Crawford County11Dauphin County: 11 %Dauphin County11Jefferson County: 11 %Jefferson County11Wyoming County: 11 %Wyoming County11Armstrong County: 10.9 %Armstrong County10.9Clearfield County: 10.9 %Clearfield County10.9Greene County: 10.9 %Greene County10.9Schuylkill County: 10.9 %Schuylkill County10.9Juniata County: 10.8 %Juniata County10.8Venango County: 10.8 %Venango County10.8Bradford County: 10.7 %Bradford County10.7Cambria County: 10.7 %Cambria County10.7Erie County: 10.7 %Erie County10.7Lawrence County: 10.7 %Lawrence County10.7McKean County: 10.7 %McKean County10.7Montour County: 10.7 %Montour County10.7Northumberland County: 10.7 %Northumberland County10.7Warren County: 10.7 %Warren County10.7Wayne County: 10.7 %Wayne County10.7Beaver County: 10.6 %Beaver County10.6Bedford County: 10.6 %Bedford County10.6Elk County: 10.6 %Elk County10.6Lancaster County: 10.6 %Lancaster County10.6Lehigh County: 10.6 %Lehigh County10.6Monroe County: 10.6 %Monroe County10.6Perry County: 10.6 %Perry County10.6Philadelphia County: 11.6 %Philadelphia County11.6Fayette County: 11.3 %Fayette County11.3Sullivan County: 11.3 %Sullivan County11.3Blair County: 11.2 %Blair County11.2Clinton County: 11.2 %Clinton County11.2Mercer County: 11.2 %Mercer County11.2Mifflin County: 11.2 %Mifflin County11.2Columbia County: 11.1 %Columbia County11.1Indiana County: 11.1 %Indiana County11.1Luzerne County: 11.1 %Luzerne County11.1Tioga County: 11.1 %Tioga County11.1Washington County: 11.1 %Washington County11.1Cameron County: 11 %Cameron County11Clarion County: 11 %Clarion County11Crawford County: 11 %Crawford County11Dauphin County: 11 %Dauphin County11Jefferson County: 11 %Jefferson County11Wyoming County: 11 %Wyoming County11Armstrong County: 10.9 %Armstrong County10.9Clearfield County: 10.9 %Clearfield County10.9Greene County: 10.9 %Greene County10.9Schuylkill County: 10.9 %Schuylkill County10.9Juniata County: 10.8 %Juniata County10.8Venango County: 10.8 %Venango County10.8Bradford County: 10.7 %Bradford County10.7Cambria County: 10.7 %Cambria County10.7Erie County: 10.7 %Erie County10.7Lawrence County: 10.7 %Lawrence County10.7McKean County: 10.7 %McKean County10.7Montour County: 10.7 %Montour County10.7Northumberland County: 10.7 %Northumberland County10.7Warren County: 10.7 %Warren County10.7Wayne County: 10.7 %Wayne County10.7Beaver County: 10.6 %Beaver County10.6Bedford County: 10.6 %Bedford County10.6Elk County: 10.6 %Elk County10.6Lancaster County: 10.6 %Lancaster County10.6Lehigh County: 10.6 %Lehigh County10.6Monroe County: 10.6 %Monroe County10.6Perry County: 10.6 %Perry County10.6
%. 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

RankCounties2022 (%)Change on 2021
1Philadelphia County11.6-0.2 pts
2Fayette County11.3+0.4 pts
2Sullivan County11.3+1 pts
4Blair County11.2+0.5 pts
4Clinton County11.2+0.3 pts
4Mercer County11.2+0.6 pts
4Mifflin County11.2+0.2 pts
8Columbia County11.1+0.2 pts
8Indiana County11.1+0.3 pts
8Luzerne County11.1+0.7 pts
8Tioga County11.1+0.5 pts
8Washington County11.1+0.9 pts
13Cameron County11+0.2 pts
13Clarion County11+0.1 pts
13Crawford County11+0.2 pts
13Dauphin County11+0.4 pts
13Jefferson County11+0.3 pts
13Wyoming County11+0.6 pts
19Armstrong County10.9+0.4 pts
19Clearfield County10.9+0.4 pts
19Greene County10.9+0.3 pts
19Schuylkill County10.9+0.2 pts
23Juniata County10.8+0.1 pts
23Venango County10.8+0.3 pts
25Bradford County10.7+0.1 pts
25Cambria County10.7+0.1 pts
25Erie County10.7-0.3 pts
25Lawrence County10.70 pts
25McKean County10.7-0.1 pts
25Montour County10.7+0.5 pts
25Northumberland County10.7+0.2 pts
25Warren County10.7+0.2 pts
25Wayne County10.7+0.5 pts
34Beaver County10.6+0.2 pts
34Bedford County10.6+0.1 pts
34Elk County10.6+0.2 pts
34Lancaster County10.6+0.1 pts
34Lehigh County10.6+0.2 pts
34Monroe County10.60 pts
34Perry County10.6+0.1 pts
34Union County10.6+0.4 pts
42Allegheny County10.50 pts
42Carbon County10.5-0.1 pts
42Potter County10.5-0.2 pts
45Berks County10.4-0.1 pts
45Franklin County10.40 pts
45Fulton County10.4-0.2 pts
45Huntingdon County10.4-0.1 pts
45Lackawanna County10.40 pts
45Lebanon County10.4+0.1 pts
45Lycoming County10.4-0.5 pts
45Snyder County10.4-0.3 pts
45Somerset County10.40 pts
45York County10.4-0.1 pts
55Adams County10.30 pts
55Centre County10.3-0.1 pts
55Cumberland County10.3+0.3 pts
55Delaware County10.3+0.1 pts
59Bucks County10.2+0.3 pts
59Northampton County10.2+0.1 pts
59Westmoreland County10.20 pts
62Forest County10.1+0.1 pts
62Pike County10.10 pts
64Butler County10+0.1 pts
64Susquehanna County10-0.4 pts
66Montgomery County9.9+0.2 pts
67Chester County9.7+0.1 pts

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 Pennsylvania by current asthma in adults, local model estimate, 2022) [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 Pennsylvania by current asthma in adults, local model estimate, 2022. Centers for Disease Control and Prevention, 4 Dec. 2025, https://www.cdc.gov/places/. Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/pennsylvania-counties. 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 Pennsylvania by current asthma in adults, local model estimate, 2022. Dataset. Accessed October 12, 2026. https://www.cdc.gov/places/. Also distributed by Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/pennsylvania-counties.

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 Pennsylvania by current asthma in adults, local model estimate, 2022 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-asthma-rate-county-estimate/pennsylvania-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_pennsylvania_by_2022,
  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 Pennsylvania by current asthma in adults, local model estimate, 2022}},
  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/pennsylvania-counties. 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 Pennsylvania by current asthma in adults, local model estimate, 2022
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/pennsylvania-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/pennsylvania-counties.
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 Pennsylvania 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?

Philadelphia County, with 11.6% in 2022, according to the Centers for Disease Control and Prevention.

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

Chester County, with 9.7% in 2022.

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 Pennsylvania: more rankings