Counties in Washington by current asthma in adults, local model estimate, 2023

Cowlitz County had the highest current asthma in adults, local model estimate of 39 counties in 2023, at 12.3%. King County had the lowest, at 9.7%. The median was 11.2%. Source: the Centers for Disease Control and Prevention.

Keep it in a collection in your library.
Highest12.3Cowlitz County
Lowest9.7King County
Median11.239 counties

Map of counties, 2023

Adams County: 10.6 %Asotin County: 11.7 %Benton County: 10.8 %Chelan County: 10.6 %Clallam County: 11.4 %Clark County: 11.6 %Columbia County: 11.3 %Cowlitz County: 12.3 %Douglas County: 10.6 %Ferry County: 12.3 %Franklin County: 10.5 %Garfield County: 11 %Grant County: 10.8 %Grays Harbor County: 11.5 %Island County: 10.4 %Jefferson County: 10.5 %King County: 9.7 %Kitsap County: 11.2 %Kittitas County: 11.3 %Klickitat County: 11.3 %Lewis County: 11.3 %Lincoln County: 11.2 %Mason County: 11.1 %Okanogan County: 11.6 %Pacific County: 11.1 %Pend Oreille County: 11.4 %Pierce County: 10.8 %San Juan County: 10.4 %Skagit County: 11 %Skamania County: 11.5 %Snohomish County: 11.1 %Spokane County: 11.5 %Stevens County: 12 %Thurston County: 11.2 %Wahkiakum County: 11.5 %Walla Walla County: 11 %Whatcom County: 10.7 %Whitman County: 12 %Yakima County: 10.7 %
  • Under 11
  • 11 to 12
  • 12 and over
%, 2023. 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, 2023

Cowlitz County: 12.3 %Cowlitz County12.3Ferry County: 12.3 %Ferry County12.3Stevens County: 12 %Stevens County12Whitman County: 12 %Whitman County12Asotin County: 11.7 %Asotin County11.7Clark County: 11.6 %Clark County11.6Okanogan County: 11.6 %Okanogan County11.6Grays Harbor County: 11.5 %Grays Harbor County11.5Skamania County: 11.5 %Skamania County11.5Spokane County: 11.5 %Spokane County11.5Wahkiakum County: 11.5 %Wahkiakum County11.5Clallam County: 11.4 %Clallam County11.4Pend Oreille County: 11.4 %Pend Oreille County11.4Columbia County: 11.3 %Columbia County11.3Kittitas County: 11.3 %Kittitas County11.3Klickitat County: 11.3 %Klickitat County11.3Lewis County: 11.3 %Lewis County11.3Kitsap County: 11.2 %Kitsap County11.2Lincoln County: 11.2 %Lincoln County11.2Thurston County: 11.2 %Thurston County11.2Mason County: 11.1 %Mason County11.1Pacific County: 11.1 %Pacific County11.1Snohomish County: 11.1 %Snohomish County11.1Garfield County: 11 %Garfield County11Skagit County: 11 %Skagit County11Walla Walla County: 11 %Walla Walla County11Benton County: 10.8 %Benton County10.8Grant County: 10.8 %Grant County10.8Pierce County: 10.8 %Pierce County10.8Whatcom County: 10.7 %Whatcom County10.7Yakima County: 10.7 %Yakima County10.7Adams County: 10.6 %Adams County10.6Chelan County: 10.6 %Chelan County10.6Douglas County: 10.6 %Douglas County10.6Franklin County: 10.5 %Franklin County10.5Jefferson County: 10.5 %Jefferson County10.5Island County: 10.4 %Island County10.4San Juan County: 10.4 %San Juan County10.4King County: 9.7 %King County9.7Cowlitz County: 12.3 %Cowlitz County12.3Ferry County: 12.3 %Ferry County12.3Stevens County: 12 %Stevens County12Whitman County: 12 %Whitman County12Asotin County: 11.7 %Asotin County11.7Clark County: 11.6 %Clark County11.6Okanogan County: 11.6 %Okanogan County11.6Grays Harbor County: 11.5 %Grays Harbor County11.5Skamania County: 11.5 %Skamania County11.5Spokane County: 11.5 %Spokane County11.5Wahkiakum County: 11.5 %Wahkiakum County11.5Clallam County: 11.4 %Clallam County11.4Pend Oreille County: 11.4 %Pend Oreille County11.4Columbia County: 11.3 %Columbia County11.3Kittitas County: 11.3 %Kittitas County11.3Klickitat County: 11.3 %Klickitat County11.3Lewis County: 11.3 %Lewis County11.3Kitsap County: 11.2 %Kitsap County11.2Lincoln County: 11.2 %Lincoln County11.2Thurston County: 11.2 %Thurston County11.2Mason County: 11.1 %Mason County11.1Pacific County: 11.1 %Pacific County11.1Snohomish County: 11.1 %Snohomish County11.1Garfield County: 11 %Garfield County11Skagit County: 11 %Skagit County11Walla Walla County: 11 %Walla Walla County11Benton County: 10.8 %Benton County10.8Grant County: 10.8 %Grant County10.8Pierce County: 10.8 %Pierce County10.8Whatcom County: 10.7 %Whatcom County10.7Yakima County: 10.7 %Yakima County10.7Adams County: 10.6 %Adams County10.6Chelan County: 10.6 %Chelan County10.6Douglas County: 10.6 %Douglas County10.6Franklin County: 10.5 %Franklin County10.5Jefferson County: 10.5 %Jefferson County10.5Island County: 10.4 %Island County10.4San Juan County: 10.4 %San Juan County10.4King County: 9.7 %King County9.7
%. 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

RankCounties2023 (%)Change on 2022
1Cowlitz County12.3-0.5 pts
1Ferry County12.3-0.6 pts
3Stevens County12+0.3 pts
3Whitman County12-0.7 pts
5Asotin County11.7-0.6 pts
6Clark County11.6+0.1 pts
6Okanogan County11.6-0.6 pts
8Grays Harbor County11.5-0.6 pts
8Skamania County11.5-0.2 pts
8Spokane County11.5-1 pts
8Wahkiakum County11.5-0.4 pts
12Clallam County11.4-0.6 pts
12Pend Oreille County11.4-0.6 pts
14Columbia County11.3-0.6 pts
14Kittitas County11.3-0.6 pts
14Klickitat County11.3-0.6 pts
14Lewis County11.3-1 pts
18Kitsap County11.20 pts
18Lincoln County11.2-0.7 pts
18Thurston County11.2-0.4 pts
21Mason County11.1-0.8 pts
21Pacific County11.1-0.8 pts
21Snohomish County11.1+0.1 pts
24Garfield County11-0.7 pts
24Skagit County11-0.3 pts
24Walla Walla County11-1.2 pts
27Benton County10.8-1.1 pts
27Grant County10.8-1.4 pts
27Pierce County10.8-1.5 pts
30Whatcom County10.7-1.4 pts
30Yakima County10.7-1.6 pts
32Adams County10.6-1.1 pts
32Chelan County10.6-0.7 pts
32Douglas County10.6-0.6 pts
35Franklin County10.5-1.5 pts
35Jefferson County10.5-0.7 pts
37Island County10.4-0.7 pts
37San Juan County10.4-0.4 pts
39King County9.7+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, 2023) [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, 2023. 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. 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, 2023. 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.

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, 2023 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-asthma-rate-county-estimate/washington-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_washington_by_2023,
  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, 2023}},
  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. 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, 2023
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
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/washington-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  - 
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Washington by current asthma in adults, local model estimate using official data, and cite the source.
rank_places {"indicator":"adult_asthma_rate_modelled","level":"province","within":"Washington","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=adult_asthma_rate_modelled&level=province&within=Washington&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Cowlitz County, with 12.3% in 2023, according to the Centers for Disease Control and Prevention.

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

King County, with 9.7% in 2023.

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