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

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

Alexander County had the highest current asthma in adults, local model estimate of 102 counties in 2022, at 11.3%. DuPage County had the lowest, at 8.5%. The median was 10.2%. Source: the Centers for Disease Control and Prevention.

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Highest11.3Alexander County
Lowest8.5DuPage County
Median10.2102 counties

Map of counties, 2022

Adams County: 10 %Alexander County: 11.3 %Bond County: 10.8 %Boone County: 10.2 %Brown County: 9.8 %Bureau County: 10.4 %Calhoun County: 9.3 %Carroll County: 9.4 %Cass County: 10 %Champaign County: 9.9 %Christian County: 9.8 %Clark County: 9.8 %Clay County: 10.7 %Clinton County: 9.8 %Coles County: 10.7 %Cook County: 9.2 %Crawford County: 10.2 %Cumberland County: 10.2 %DeKalb County: 10.1 %De Witt County: 10.1 %Douglas County: 10.3 %DuPage County: 8.5 %Edgar County: 10.3 %Edwards County: 10.2 %Effingham County: 9.6 %Fayette County: 9.9 %Ford County: 10.3 %Franklin County: 10.6 %Fulton County: 10.5 %Gallatin County: 10.6 %Greene County: 10.6 %Grundy County: 9.7 %Hamilton County: 10.6 %Hancock County: 9.8 %Hardin County: 10.3 %Henderson County: 9.8 %Henry County: 9.7 %Iroquois County: 10.1 %Jackson County: 10.7 %Jasper County: 9.9 %Jefferson County: 10.4 %Jersey County: 10.1 %Jo Daviess County: 9.4 %Johnson County: 9.6 %Kane County: 9.1 %Kankakee County: 10.3 %Kendall County: 9.3 %Knox County: 10.4 %Lake County: 9.1 %LaSalle County: 10.1 %Lawrence County: 10.5 %Lee County: 10.2 %Livingston County: 10.2 %Logan County: 10.4 %McDonough County: 10.7 %McHenry County: 9.5 %McLean County: 10.1 %Macon County: 10.4 %Macoupin County: 10.3 %Madison County: 10.1 %Marion County: 10.8 %Marshall County: 10.3 %Mason County: 10.1 %Massac County: 10.6 %Menard County: 10.2 %Mercer County: 9.9 %Monroe County: 9.5 %Montgomery County: 9.8 %Morgan County: 10.4 %Moultrie County: 10.2 %Ogle County: 10.4 %Peoria County: 10.3 %Perry County: 10.6 %Piatt County: 9.6 %Pike County: 10.1 %Pope County: 9.9 %Pulaski County: 11.2 %Putnam County: 9.5 %Randolph County: 10 %Richland County: 10.1 %Rock Island County: 10 %St. Clair County: 10.5 %Saline County: 10.9 %Sangamon County: 10.3 %Schuyler County: 9.9 %Scott County: 9.8 %Shelby County: 10.4 %Stark County: 10.2 %Stephenson County: 10.5 %Tazewell County: 9.9 %Union County: 10 %Vermilion County: 10.6 %Wabash County: 10.3 %Warren County: 10.4 %Washington County: 9.5 %Wayne County: 10.3 %White County: 10.9 %Whiteside County: 9.8 %Will County: 9.3 %Williamson County: 10.2 %Winnebago County: 10.9 %Woodford County: 10.3 %
  • Under 9.7
  • 9.7 to 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

Alexander County: 11.3 %Alexander County11.3Pulaski County: 11.2 %Pulaski County11.2Saline County: 10.9 %Saline County10.9White County: 10.9 %White County10.9Winnebago County: 10.9 %Winnebago County10.9Bond County: 10.8 %Bond County10.8Marion County: 10.8 %Marion County10.8Clay County: 10.7 %Clay County10.7Coles County: 10.7 %Coles County10.7Jackson County: 10.7 %Jackson County10.7McDonough County: 10.7 %McDonough County10.7Franklin County: 10.6 %Franklin County10.6Gallatin County: 10.6 %Gallatin County10.6Greene County: 10.6 %Greene County10.6Hamilton County: 10.6 %Hamilton County10.6Massac County: 10.6 %Massac County10.6Perry County: 10.6 %Perry County10.6Vermilion County: 10.6 %Vermilion County10.6Fulton County: 10.5 %Fulton County10.5Lawrence County: 10.5 %Lawrence County10.5St. Clair County: 10.5 %St. Clair County10.5Stephenson County: 10.5 %Stephenson County10.5Bureau County: 10.4 %Bureau County10.4Jefferson County: 10.4 %Jefferson County10.4Knox County: 10.4 %Knox County10.4Logan County: 10.4 %Logan County10.4Macon County: 10.4 %Macon County10.4Morgan County: 10.4 %Morgan County10.4Ogle County: 10.4 %Ogle County10.4Shelby County: 10.4 %Shelby County10.4Warren County: 10.4 %Warren County10.4Douglas County: 10.3 %Douglas County10.3Edgar County: 10.3 %Edgar County10.3Ford County: 10.3 %Ford County10.3Hardin County: 10.3 %Hardin County10.3Kankakee County: 10.3 %Kankakee County10.3Macoupin County: 10.3 %Macoupin County10.3Marshall County: 10.3 %Marshall County10.3Peoria County: 10.3 %Peoria County10.3Sangamon County: 10.3 %Sangamon County10.3Alexander County: 11.3 %Alexander County11.3Pulaski County: 11.2 %Pulaski County11.2Saline County: 10.9 %Saline County10.9White County: 10.9 %White County10.9Winnebago County: 10.9 %Winnebago County10.9Bond County: 10.8 %Bond County10.8Marion County: 10.8 %Marion County10.8Clay County: 10.7 %Clay County10.7Coles County: 10.7 %Coles County10.7Jackson County: 10.7 %Jackson County10.7McDonough County: 10.7 %McDonough County10.7Franklin County: 10.6 %Franklin County10.6Gallatin County: 10.6 %Gallatin County10.6Greene County: 10.6 %Greene County10.6Hamilton County: 10.6 %Hamilton County10.6Massac County: 10.6 %Massac County10.6Perry County: 10.6 %Perry County10.6Vermilion County: 10.6 %Vermilion County10.6Fulton County: 10.5 %Fulton County10.5Lawrence County: 10.5 %Lawrence County10.5St. Clair County: 10.5 %St. Clair County10.5Stephenson County: 10.5 %Stephenson County10.5Bureau County: 10.4 %Bureau County10.4Jefferson County: 10.4 %Jefferson County10.4Knox County: 10.4 %Knox County10.4Logan County: 10.4 %Logan County10.4Macon County: 10.4 %Macon County10.4Morgan County: 10.4 %Morgan County10.4Ogle County: 10.4 %Ogle County10.4Shelby County: 10.4 %Shelby County10.4Warren County: 10.4 %Warren County10.4Douglas County: 10.3 %Douglas County10.3Edgar County: 10.3 %Edgar County10.3Ford County: 10.3 %Ford County10.3Hardin County: 10.3 %Hardin County10.3Kankakee County: 10.3 %Kankakee County10.3Macoupin County: 10.3 %Macoupin County10.3Marshall County: 10.3 %Marshall County10.3Peoria County: 10.3 %Peoria County10.3Sangamon County: 10.3 %Sangamon County10.3
%. 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
1Alexander County11.30 pts
2Pulaski County11.2+0.3 pts
3Saline County10.9+0.4 pts
3White County10.9+0.6 pts
3Winnebago County10.9+0.6 pts
6Bond County10.8+0.7 pts
6Marion County10.8+0.4 pts
8Clay County10.7+0.5 pts
8Coles County10.7+0.2 pts
8Jackson County10.7-0.3 pts
8McDonough County10.7+0.1 pts
12Franklin County10.6+0.1 pts
12Gallatin County10.6+0.3 pts
12Greene County10.6+0.6 pts
12Hamilton County10.6+0.5 pts
12Massac County10.6+0.1 pts
12Perry County10.6+0.4 pts
12Vermilion County10.6+0.2 pts
19Fulton County10.5+0.5 pts
19Lawrence County10.5+0.4 pts
19St. Clair County10.5+0.2 pts
19Stephenson County10.5+0.4 pts
23Bureau County10.4+0.6 pts
23Jefferson County10.4+0.3 pts
23Knox County10.4+0.1 pts
23Logan County10.4+0.4 pts
23Macon County10.40 pts
23Morgan County10.4+0.2 pts
23Ogle County10.4+0.7 pts
23Shelby County10.4+0.7 pts
23Warren County10.4+0.4 pts
32Douglas County10.3+0.2 pts
32Edgar County10.3+0.3 pts
32Ford County10.3+0.3 pts
32Hardin County10.3+0.2 pts
32Kankakee County10.30 pts
32Macoupin County10.3+0.2 pts
32Marshall County10.3+0.5 pts
32Peoria County10.3+0.1 pts
32Sangamon County10.3+0.2 pts
32Wabash County10.3+0.3 pts
32Wayne County10.30 pts
32Woodford County10.3+0.9 pts
44Boone County10.2+0.6 pts
44Crawford County10.2+0.3 pts
44Cumberland County10.2+0.5 pts
44Edwards County10.2+0.1 pts
44Lee County10.2+0.6 pts
44Livingston County10.2+0.1 pts
44Menard County10.2+0.6 pts
44Moultrie County10.2+0.1 pts
44Stark County10.2+0.4 pts
44Williamson County10.2+0.2 pts
54De Witt County10.1+0.2 pts
54DeKalb County10.10 pts
54Iroquois County10.1+0.1 pts
54Jersey County10.1+0.4 pts
54LaSalle County10.1+0.3 pts
54Madison County10.1+0.1 pts
54Mason County10.1+0.1 pts
54McLean County10.1+0.1 pts
54Pike County10.10 pts
54Richland County10.1+0.1 pts
64Adams County100 pts
64Cass County100 pts
64Randolph County100 pts
64Rock Island County10-0.1 pts
64Union County10-0.1 pts
69Champaign County9.9-0.2 pts
69Fayette County9.9-0.3 pts
69Jasper County9.9+0.1 pts
69Mercer County9.9+0.1 pts
69Pope County9.9-0.2 pts
69Schuyler County9.9+0.2 pts
69Tazewell County9.9+0.2 pts
76Brown County9.8+0.2 pts
76Christian County9.8-0.1 pts
76Clark County9.8+0.1 pts
76Clinton County9.8+0.1 pts
76Hancock County9.8+0.1 pts
76Henderson County9.8+0.3 pts
76Montgomery County9.8-0.1 pts
76Scott County9.80 pts
76Whiteside County9.80 pts
85Grundy County9.7+0.1 pts
85Henry County9.7+0.1 pts
87Effingham County9.6-0.2 pts
87Johnson County9.6-0.3 pts
87Piatt County9.6+0.2 pts
90McHenry County9.5+0.3 pts
90Monroe County9.5+0.3 pts
90Putnam County9.5+0.1 pts
90Washington County9.50 pts
94Carroll County9.4-0.4 pts
94Jo Daviess County9.4-0.1 pts
96Calhoun County9.3-0.2 pts
96Kendall County9.3+0.1 pts
96Will County9.30 pts
99Cook County9.20 pts
100Kane County9.1-0.3 pts
100Lake County9.1+0.1 pts
102DuPage County8.5-0.2 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 Illinois 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 Illinois 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/illinois-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 Illinois 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/illinois-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 Illinois 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/illinois-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_illinois_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 Illinois 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/illinois-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 Illinois 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/illinois-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-asthma-rate-county-estimate/illinois-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 Illinois 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":"Illinois","limit":10}
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Questions

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

Alexander County, with 11.3% in 2022, according to the Centers for Disease Control and Prevention.

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

DuPage County, with 8.5% 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 Illinois: more rankings