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

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

Black Hawk County had the highest current asthma in adults, local model estimate of 99 counties in 2022, at 10.7%. Winneshiek County had the lowest, at 9%. The median was 9.7%. Source: the Centers for Disease Control and Prevention.

Keep it in a collection in your library.
Highest10.7Black Hawk County
Lowest9Winneshiek County
Median9.799 counties

Map of counties, 2022

Adair County: 9.6 %Adams County: 9.8 %Allamakee County: 9.7 %Appanoose County: 9.9 %Audubon County: 9.9 %Benton County: 10.2 %Black Hawk County: 10.7 %Boone County: 9.8 %Bremer County: 9.4 %Buchanan County: 9.7 %Buena Vista County: 9.3 %Butler County: 9.5 %Calhoun County: 9.8 %Carroll County: 9.8 %Cass County: 10.4 %Cedar County: 9.6 %Cerro Gordo County: 9.7 %Cherokee County: 9.6 %Chickasaw County: 9.7 %Clarke County: 10 %Clay County: 9.6 %Clayton County: 9.5 %Clinton County: 10.2 %Crawford County: 9.5 %Dallas County: 9.2 %Davis County: 10.2 %Decatur County: 10.3 %Delaware County: 9.4 %Des Moines County: 10.1 %Dickinson County: 9.6 %Dubuque County: 10.2 %Emmet County: 9.8 %Fayette County: 10 %Floyd County: 9.8 %Franklin County: 9.7 %Fremont County: 9.6 %Greene County: 9.7 %Grundy County: 9.4 %Guthrie County: 9.5 %Hamilton County: 9.4 %Hancock County: 9.7 %Hardin County: 10.2 %Harrison County: 10.3 %Henry County: 9.7 %Howard County: 9.8 %Humboldt County: 9.9 %Ida County: 9.5 %Iowa County: 9.3 %Jackson County: 10.1 %Jasper County: 9.6 %Jefferson County: 9.3 %Johnson County: 9.3 %Jones County: 9.3 %Keokuk County: 9.8 %Kossuth County: 9.7 %Lee County: 10.2 %Linn County: 10.1 %Louisa County: 10.4 %Lucas County: 10.3 %Lyon County: 9.4 %Madison County: 9.2 %Mahaska County: 9.8 %Marion County: 9.4 %Marshall County: 9.6 %Mills County: 9.6 %Mitchell County: 9.7 %Monona County: 10.2 %Monroe County: 9.6 %Montgomery County: 10 %Muscatine County: 9.7 %O'Brien County: 9.7 %Osceola County: 10.1 %Page County: 9.6 %Palo Alto County: 9.7 %Plymouth County: 9.6 %Pocahontas County: 9.5 %Polk County: 10.1 %Pottawattamie County: 10.2 %Poweshiek County: 9.7 %Ringgold County: 10 %Sac County: 9.6 %Scott County: 9.8 %Shelby County: 9.9 %Sioux County: 9.2 %Story County: 9.4 %Tama County: 10.1 %Taylor County: 9.7 %Union County: 10.1 %Van Buren County: 10 %Wapello County: 10.2 %Warren County: 9.9 %Washington County: 9.8 %Wayne County: 10.5 %Webster County: 9.5 %Winnebago County: 9.2 %Winneshiek County: 9 %Woodbury County: 10 %Worth County: 9.7 %Wright County: 9.8 %
  • Under 9.4
  • 9.4 to 9.6
  • 9.6 to 9.7
  • 9.7 to 9.9
  • 9.9 to 10
  • 10 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

Black Hawk County: 10.7 %Black Hawk County10.7Wayne County: 10.5 %Wayne County10.5Cass County: 10.4 %Cass County10.4Louisa County: 10.4 %Louisa County10.4Decatur County: 10.3 %Decatur County10.3Harrison County: 10.3 %Harrison County10.3Lucas County: 10.3 %Lucas County10.3Benton County: 10.2 %Benton County10.2Clinton County: 10.2 %Clinton County10.2Davis County: 10.2 %Davis County10.2Dubuque County: 10.2 %Dubuque County10.2Hardin County: 10.2 %Hardin County10.2Lee County: 10.2 %Lee County10.2Monona County: 10.2 %Monona County10.2Pottawattamie County: 10.2 %Pottawattamie County10.2Wapello County: 10.2 %Wapello County10.2Des Moines County: 10.1 %Des Moines County10.1Jackson County: 10.1 %Jackson County10.1Linn County: 10.1 %Linn County10.1Osceola County: 10.1 %Osceola County10.1Polk County: 10.1 %Polk County10.1Tama County: 10.1 %Tama County10.1Union County: 10.1 %Union County10.1Clarke County: 10 %Clarke County10Fayette County: 10 %Fayette County10Montgomery County: 10 %Montgomery County10Ringgold County: 10 %Ringgold County10Van Buren County: 10 %Van Buren County10Woodbury County: 10 %Woodbury County10Appanoose County: 9.9 %Appanoose County9.9Audubon County: 9.9 %Audubon County9.9Humboldt County: 9.9 %Humboldt County9.9Shelby County: 9.9 %Shelby County9.9Warren County: 9.9 %Warren County9.9Adams County: 9.8 %Adams County9.8Boone County: 9.8 %Boone County9.8Calhoun County: 9.8 %Calhoun County9.8Carroll County: 9.8 %Carroll County9.8Emmet County: 9.8 %Emmet County9.8Floyd County: 9.8 %Floyd County9.8Black Hawk County: 10.7 %Black Hawk County10.7Wayne County: 10.5 %Wayne County10.5Cass County: 10.4 %Cass County10.4Louisa County: 10.4 %Louisa County10.4Decatur County: 10.3 %Decatur County10.3Harrison County: 10.3 %Harrison County10.3Lucas County: 10.3 %Lucas County10.3Benton County: 10.2 %Benton County10.2Clinton County: 10.2 %Clinton County10.2Davis County: 10.2 %Davis County10.2Dubuque County: 10.2 %Dubuque County10.2Hardin County: 10.2 %Hardin County10.2Lee County: 10.2 %Lee County10.2Monona County: 10.2 %Monona County10.2Pottawattamie County: 10.2 %Pottawattamie County10.2Wapello County: 10.2 %Wapello County10.2Des Moines County: 10.1 %Des Moines County10.1Jackson County: 10.1 %Jackson County10.1Linn County: 10.1 %Linn County10.1Osceola County: 10.1 %Osceola County10.1Polk County: 10.1 %Polk County10.1Tama County: 10.1 %Tama County10.1Union County: 10.1 %Union County10.1Clarke County: 10 %Clarke County10Fayette County: 10 %Fayette County10Montgomery County: 10 %Montgomery County10Ringgold County: 10 %Ringgold County10Van Buren County: 10 %Van Buren County10Woodbury County: 10 %Woodbury County10Appanoose County: 9.9 %Appanoose County9.9Audubon County: 9.9 %Audubon County9.9Humboldt County: 9.9 %Humboldt County9.9Shelby County: 9.9 %Shelby County9.9Warren County: 9.9 %Warren County9.9Adams County: 9.8 %Adams County9.8Boone County: 9.8 %Boone County9.8Calhoun County: 9.8 %Calhoun County9.8Carroll County: 9.8 %Carroll County9.8Emmet County: 9.8 %Emmet County9.8Floyd County: 9.8 %Floyd County9.8
%. 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
1Black Hawk County10.7+0.9 pts
2Wayne County10.5+0.9 pts
3Cass County10.4+0.9 pts
3Louisa County10.4+1.1 pts
5Decatur County10.3+0.5 pts
5Harrison County10.3+1 pts
5Lucas County10.3+0.8 pts
8Benton County10.2+1 pts
8Clinton County10.2+0.5 pts
8Davis County10.2+0.3 pts
8Dubuque County10.2+1 pts
8Hardin County10.2+0.8 pts
8Lee County10.2+0.7 pts
8Monona County10.2+0.7 pts
8Pottawattamie County10.2+0.6 pts
8Wapello County10.2+0.4 pts
17Des Moines County10.1+0.4 pts
17Jackson County10.1+0.8 pts
17Linn County10.1+0.7 pts
17Osceola County10.1+1 pts
17Polk County10.1+1 pts
17Tama County10.1+0.4 pts
17Union County10.1+0.7 pts
24Clarke County10+0.3 pts
24Fayette County10+0.5 pts
24Montgomery County10+0.3 pts
24Ringgold County10+0.6 pts
24Van Buren County10+0.2 pts
24Woodbury County10-0.3 pts
30Appanoose County9.90 pts
30Audubon County9.9+0.7 pts
30Humboldt County9.9+0.5 pts
30Shelby County9.9+0.8 pts
30Warren County9.9+0.8 pts
35Adams County9.8+0.6 pts
35Boone County9.8+0.6 pts
35Calhoun County9.8+0.7 pts
35Carroll County9.8+0.6 pts
35Emmet County9.8+0.3 pts
35Floyd County9.8+0.5 pts
35Howard County9.8+0.6 pts
35Keokuk County9.8+0.3 pts
35Mahaska County9.8+0.4 pts
35Scott County9.8+0.4 pts
35Washington County9.8+0.6 pts
35Wright County9.8+0.6 pts
47Allamakee County9.7+0.5 pts
47Buchanan County9.7+0.6 pts
47Cerro Gordo County9.7+0.5 pts
47Chickasaw County9.7+0.5 pts
47Franklin County9.7+0.3 pts
47Greene County9.7+0.3 pts
47Hancock County9.7+0.5 pts
47Henry County9.7+0.4 pts
47Kossuth County9.7+0.6 pts
47Mitchell County9.7+0.5 pts
47Muscatine County9.7+0.6 pts
47O'Brien County9.7+0.4 pts
47Palo Alto County9.7+0.5 pts
47Poweshiek County9.7+0.4 pts
47Taylor County9.7+0.5 pts
47Worth County9.7+0.5 pts
63Adair County9.6+0.3 pts
63Cedar County9.6+0.5 pts
63Cherokee County9.6+0.4 pts
63Clay County9.6+0.4 pts
63Dickinson County9.6+0.6 pts
63Fremont County9.6+0.3 pts
63Jasper County9.6+0.6 pts
63Marshall County9.6+0.2 pts
63Mills County9.6+0.5 pts
63Monroe County9.6+0.3 pts
63Page County9.6+0.2 pts
63Plymouth County9.6+0.6 pts
63Sac County9.6+0.3 pts
76Butler County9.5+0.2 pts
76Clayton County9.5+0.2 pts
76Crawford County9.5+0.2 pts
76Guthrie County9.5+0.4 pts
76Ida County9.5+0.3 pts
76Pocahontas County9.5+0.1 pts
76Webster County9.50 pts
83Bremer County9.4+0.4 pts
83Delaware County9.4+0.3 pts
83Grundy County9.4+0.4 pts
83Hamilton County9.4+0.3 pts
83Lyon County9.4+0.3 pts
83Marion County9.4+0.4 pts
83Story County9.40 pts
90Buena Vista County9.30 pts
90Iowa County9.3+0.2 pts
90Jefferson County9.3+0.4 pts
90Johnson County9.3-0.4 pts
90Jones County9.3+0.1 pts
95Dallas County9.2+0.3 pts
95Madison County9.2+0.1 pts
95Sioux County9.2+0.5 pts
95Winnebago County9.2+0.1 pts
99Winneshiek County90 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 Iowa 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 Iowa 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/iowa-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 Iowa 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/iowa-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 Iowa 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/iowa-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_iowa_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 Iowa 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/iowa-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 Iowa 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/iowa-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/iowa-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  -
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 Iowa 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":"Iowa","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=adult_asthma_rate_modelled&level=province&within=Iowa&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?

Black Hawk County, with 10.7% in 2022, according to the Centers for Disease Control and Prevention.

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

Winneshiek County, with 9% 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 Iowa: more rankings