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

Ferry County had the highest current asthma in adults, local model estimate of 39 counties in 2022, at 12.9%. King County had the lowest, at 9.3%. The median was 11.9%. Source: the Centers for Disease Control and Prevention.

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Highest12.9Ferry County
Lowest9.3King County
Median11.939 counties

Map of counties, 2022

Adams County: 11.7 %Asotin County: 12.3 %Benton County: 11.9 %Chelan County: 11.3 %Clallam County: 12 %Clark County: 11.5 %Columbia County: 11.9 %Cowlitz County: 12.8 %Douglas County: 11.2 %Ferry County: 12.9 %Franklin County: 12 %Garfield County: 11.7 %Grant County: 12.2 %Grays Harbor County: 12.1 %Island County: 11.1 %Jefferson County: 11.2 %King County: 9.3 %Kitsap County: 11.2 %Kittitas County: 11.9 %Klickitat County: 11.9 %Lewis County: 12.3 %Lincoln County: 11.9 %Mason County: 11.9 %Okanogan County: 12.2 %Pacific County: 11.9 %Pend Oreille County: 12 %Pierce County: 12.3 %San Juan County: 10.8 %Skagit County: 11.3 %Skamania County: 11.7 %Snohomish County: 11 %Spokane County: 12.5 %Stevens County: 11.7 %Thurston County: 11.6 %Wahkiakum County: 11.9 %Walla Walla County: 12.2 %Whatcom County: 12.1 %Whitman County: 12.7 %Yakima County: 12.3 %
  • Under 11
  • 11 to 12
  • 12 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.

All counties, 2022

Ferry County: 12.9 %Ferry County12.9Cowlitz County: 12.8 %Cowlitz County12.8Whitman County: 12.7 %Whitman County12.7Spokane County: 12.5 %Spokane County12.5Asotin County: 12.3 %Asotin County12.3Lewis County: 12.3 %Lewis County12.3Pierce County: 12.3 %Pierce County12.3Yakima County: 12.3 %Yakima County12.3Grant County: 12.2 %Grant County12.2Okanogan County: 12.2 %Okanogan County12.2Walla Walla County: 12.2 %Walla Walla County12.2Grays Harbor County: 12.1 %Grays Harbor County12.1Whatcom County: 12.1 %Whatcom County12.1Clallam County: 12 %Clallam County12Franklin County: 12 %Franklin County12Pend Oreille County: 12 %Pend Oreille County12Benton County: 11.9 %Benton County11.9Columbia County: 11.9 %Columbia County11.9Kittitas County: 11.9 %Kittitas County11.9Klickitat County: 11.9 %Klickitat County11.9Lincoln County: 11.9 %Lincoln County11.9Mason County: 11.9 %Mason County11.9Pacific County: 11.9 %Pacific County11.9Wahkiakum County: 11.9 %Wahkiakum County11.9Adams County: 11.7 %Adams County11.7Garfield County: 11.7 %Garfield County11.7Skamania County: 11.7 %Skamania County11.7Stevens County: 11.7 %Stevens County11.7Thurston County: 11.6 %Thurston County11.6Clark County: 11.5 %Clark County11.5Chelan County: 11.3 %Chelan County11.3Skagit County: 11.3 %Skagit County11.3Douglas County: 11.2 %Douglas County11.2Jefferson County: 11.2 %Jefferson County11.2Kitsap County: 11.2 %Kitsap County11.2Island County: 11.1 %Island County11.1Snohomish County: 11 %Snohomish County11San Juan County: 10.8 %San Juan County10.8King County: 9.3 %King County9.3Ferry County: 12.9 %Ferry County12.9Cowlitz County: 12.8 %Cowlitz County12.8Whitman County: 12.7 %Whitman County12.7Spokane County: 12.5 %Spokane County12.5Asotin County: 12.3 %Asotin County12.3Lewis County: 12.3 %Lewis County12.3Pierce County: 12.3 %Pierce County12.3Yakima County: 12.3 %Yakima County12.3Grant County: 12.2 %Grant County12.2Okanogan County: 12.2 %Okanogan County12.2Walla Walla County: 12.2 %Walla Walla County12.2Grays Harbor County: 12.1 %Grays Harbor County12.1Whatcom County: 12.1 %Whatcom County12.1Clallam County: 12 %Clallam County12Franklin County: 12 %Franklin County12Pend Oreille County: 12 %Pend Oreille County12Benton County: 11.9 %Benton County11.9Columbia County: 11.9 %Columbia County11.9Kittitas County: 11.9 %Kittitas County11.9Klickitat County: 11.9 %Klickitat County11.9Lincoln County: 11.9 %Lincoln County11.9Mason County: 11.9 %Mason County11.9Pacific County: 11.9 %Pacific County11.9Wahkiakum County: 11.9 %Wahkiakum County11.9Adams County: 11.7 %Adams County11.7Garfield County: 11.7 %Garfield County11.7Skamania County: 11.7 %Skamania County11.7Stevens County: 11.7 %Stevens County11.7Thurston County: 11.6 %Thurston County11.6Clark County: 11.5 %Clark County11.5Chelan County: 11.3 %Chelan County11.3Skagit County: 11.3 %Skagit County11.3Douglas County: 11.2 %Douglas County11.2Jefferson County: 11.2 %Jefferson County11.2Kitsap County: 11.2 %Kitsap County11.2Island County: 11.1 %Island County11.1Snohomish County: 11 %Snohomish County11San Juan County: 10.8 %San Juan County10.8King County: 9.3 %King County9.3
%. 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
1Ferry County12.9+1.1 pts
2Cowlitz County12.8+0.9 pts
3Whitman County12.7+0.6 pts
4Spokane County12.5+1 pts
5Asotin County12.3+0.6 pts
5Lewis County12.3+0.8 pts
5Pierce County12.3+1.4 pts
5Yakima County12.3+0.9 pts
9Grant County12.2+0.8 pts
9Okanogan County12.2+0.4 pts
9Walla Walla County12.2+1.1 pts
12Grays Harbor County12.1+0.5 pts
12Whatcom County12.1+1.2 pts
14Clallam County12+1.1 pts
14Franklin County12+1.1 pts
14Pend Oreille County12+1.1 pts
17Benton County11.9+1.2 pts
17Columbia County11.9+1 pts
17Kittitas County11.9+0.7 pts
17Klickitat County11.9+1 pts
17Lincoln County11.9+0.9 pts
17Mason County11.9+0.9 pts
17Pacific County11.9+0.8 pts
17Wahkiakum County11.9+1.1 pts
25Adams County11.70 pts
25Garfield County11.7+0.8 pts
25Skamania County11.7+0.9 pts
25Stevens County11.7+0.4 pts
29Thurston County11.6+0.4 pts
30Clark County11.5+0.7 pts
31Chelan County11.3+0.5 pts
31Skagit County11.3+0.5 pts
33Douglas County11.2+0.3 pts
33Jefferson County11.2+0.8 pts
33Kitsap County11.2+0.5 pts
36Island County11.1+0.8 pts
37Snohomish County11+0.8 pts
38San Juan County10.8+0.6 pts
39King County9.3-0.4 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 Washington 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 Washington 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/washington-counties?period=2022. 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 Washington 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/washington-counties?period=2022.

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 Washington 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/washington-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_washington_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 Washington 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/washington-counties?period=2022. 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 Washington 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/washington-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/washington-counties?period=2022.
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 Washington 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?

Ferry County, with 12.9% in 2022, according to the Centers for Disease Control and Prevention.

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

King County, with 9.3% 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 Washington: more rankings