Data / Rankings / COPD in adults, local model estimate / Counties in Pennsylvania

Counties in Pennsylvania by COPD in adults, local model estimate

Cameron County had the highest COPD in adults, local model estimate of 67 counties in 2021, at 11.8%. Chester County had the lowest, at 5.2%. The median was 8.4%. Source: the Centers for Disease Control and Prevention.

Highest11.8Cameron County
Lowest5.2Chester County
Median8.467 counties

Top 40 counties, 2021

Cameron County: 11.8 %Cameron County11.8Mifflin County: 10.3 %Mifflin County10.3Potter County: 10.2 %Potter County10.2Sullivan County: 9.8 %Sullivan County9.8Fayette County: 9.7 %Fayette County9.7Forest County: 9.7 %Forest County9.7Jefferson County: 9.6 %Jefferson County9.6Susquehanna County: 9.5 %Susquehanna County9.5Bedford County: 9.4 %Bedford County9.4Venango County: 9.4 %Venango County9.4Bradford County: 9.3 %Bradford County9.3Clearfield County: 9.3 %Clearfield County9.3Juniata County: 9.3 %Juniata County9.3Crawford County: 9.2 %Crawford County9.2Fulton County: 9.1 %Fulton County9.1McKean County: 9.1 %McKean County9.1Northumberland County: 9.1 %Northumberland County9.1Somerset County: 9.1 %Somerset County9.1Tioga County: 9.1 %Tioga County9.1Warren County: 9.1 %Warren County9.1Lawrence County: 9 %Lawrence County9Armstrong County: 8.9 %Armstrong County8.9Carbon County: 8.9 %Carbon County8.9Elk County: 8.9 %Elk County8.9Mercer County: 8.9 %Mercer County8.9Schuylkill County: 8.9 %Schuylkill County8.9Wayne County: 8.9 %Wayne County8.9Cambria County: 8.8 %Cambria County8.8Clarion County: 8.8 %Clarion County8.8Blair County: 8.6 %Blair County8.6Clinton County: 8.6 %Clinton County8.6Greene County: 8.6 %Greene County8.6Huntingdon County: 8.6 %Huntingdon County8.6Luzerne County: 8.4 %Luzerne County8.4Perry County: 8.3 %Perry County8.3Indiana County: 8.2 %Indiana County8.2Lycoming County: 8.2 %Lycoming County8.2Snyder County: 8.2 %Snyder County8.2Wyoming County: 8.2 %Wyoming County8.2Columbia County: 8 %Columbia County8
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), copd in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Cameron County11.8
2Mifflin County10.3
3Potter County10.2
4Sullivan County9.8
5Fayette County9.7
5Forest County9.7
7Jefferson County9.6
8Susquehanna County9.5
9Bedford County9.4
9Venango County9.4
11Bradford County9.3
11Clearfield County9.3
11Juniata County9.3
14Crawford County9.2
15Fulton County9.1
15McKean County9.1
15Northumberland County9.1
15Somerset County9.1
15Tioga County9.1
15Warren County9.1
21Lawrence County9
22Armstrong County8.9
22Carbon County8.9
22Elk County8.9
22Mercer County8.9
22Schuylkill County8.9
22Wayne County8.9
28Cambria County8.8
28Clarion County8.8
30Blair County8.6
30Clinton County8.6
30Greene County8.6
30Huntingdon County8.6
34Luzerne County8.4
35Perry County8.3
36Indiana County8.2
36Lycoming County8.2
36Snyder County8.2
36Wyoming County8.2
40Columbia County8
40Erie County8
40Franklin County8
43Beaver County7.9
43Lebanon County7.9
45Lackawanna County7.8
45Pike County7.8
47Westmoreland County7.7
48Adams County7.6
48Montour County7.6
50Berks County7.4
50Union County7.4
50Washington County7.4
53York County7.3
54Lancaster County7.2
54Monroe County7.2
56Dauphin County6.9
57Lehigh County6.8
57Philadelphia County6.8
59Northampton County6.7
60Butler County6.6
61Allegheny County6.3
62Cumberland County6.2
63Delaware County6.1
64Bucks County6
65Centre County5.9
66Montgomery County5.4
67Chester County5.2

Other periods

About this ranking

Percentage of adults who have ever been told by a doctor, nurse or other health professional that they had chronic obstructive pulmonary disease (COPD), emphysema or chronic bronchitis. 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), copd 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), copd in adults, crude prevalence (Counties in Pennsylvania by COPD 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), copd in adults, crude prevalence, Counties in Pennsylvania by COPD 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-copd-rate-county-estimate/pennsylvania-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), copd in adults, crude prevalence. Counties in Pennsylvania by COPD 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-copd-rate-county-estimate/pennsylvania-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), copd in adults, crude prevalence, Counties in Pennsylvania by COPD in adults, local model estimate, 2021 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-copd-rate-county-estimate/pennsylvania-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_pennsylvania_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), copd in adults, crude prevalence: Counties in Pennsylvania by COPD 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-copd-rate-county-estimate/pennsylvania-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), copd 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), copd in adults, crude prevalence: Counties in Pennsylvania by COPD 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-copd-rate-county-estimate/pennsylvania-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-copd-rate-county-estimate/pennsylvania-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), copd 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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Questions

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

Cameron County, with 11.8% in 2021, according to the Centers for Disease Control and Prevention.

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

Chester County, with 5.2% 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), copd in adults, crude prevalence. Retrieved 2026-10-12.

COPD in adults, local model estimate: other rankings

Counties in Pennsylvania: more rankings