Data / Rankings / Coronary heart disease in adults, local model estimate / Counties in Illinois

Counties in Illinois by coronary heart disease in adults, local model estimate

Alexander County had the highest coronary heart disease in adults, local model estimate of 102 counties in 2021, at 10%. Kendall County had the lowest, at 4.3%. The median was 7.4%. Source: the Centers for Disease Control and Prevention.

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Highest10Alexander County
Lowest4.3Kendall County
Median7.4102 counties

Map of counties, 2021

Adams County: 7.4 %Alexander County: 10 %Bond County: 7.4 %Boone County: 6.3 %Brown County: 6.1 %Bureau County: 7.9 %Calhoun County: 7.8 %Carroll County: 8.6 %Cass County: 7.5 %Champaign County: 4.8 %Christian County: 7.6 %Clark County: 7 %Clay County: 8 %Clinton County: 6.5 %Coles County: 6.6 %Cook County: 5.4 %Crawford County: 7.1 %Cumberland County: 7.3 %DeKalb County: 5.1 %De Witt County: 7.4 %Douglas County: 7.2 %DuPage County: 5.1 %Edgar County: 8.1 %Edwards County: 8.1 %Effingham County: 6.8 %Fayette County: 7.9 %Ford County: 7.4 %Franklin County: 8.3 %Fulton County: 7.7 %Gallatin County: 8.9 %Greene County: 7.8 %Grundy County: 5.6 %Hamilton County: 8.1 %Hancock County: 8 %Hardin County: 9.2 %Henderson County: 8.4 %Henry County: 7.1 %Iroquois County: 8.1 %Jackson County: 6.4 %Jasper County: 7.5 %Jefferson County: 7.4 %Jersey County: 6.6 %Jo Daviess County: 8.6 %Johnson County: 7.8 %Kane County: 5.5 %Kankakee County: 6.6 %Kendall County: 4.3 %Knox County: 8.1 %Lake County: 5.3 %LaSalle County: 7.1 %Lawrence County: 7.1 %Lee County: 7.4 %Livingston County: 7.4 %Logan County: 6.4 %McDonough County: 6.5 %McHenry County: 5.5 %McLean County: 5 %Macon County: 7.5 %Macoupin County: 7.8 %Madison County: 6.4 %Marion County: 8 %Marshall County: 8 %Mason County: 8.2 %Massac County: 8.2 %Menard County: 6.8 %Mercer County: 7.7 %Monroe County: 5.9 %Montgomery County: 7.7 %Morgan County: 7.4 %Moultrie County: 7 %Ogle County: 7.1 %Peoria County: 6.6 %Perry County: 7.7 %Piatt County: 6.5 %Pike County: 8.1 %Pope County: 9.8 %Pulaski County: 9 %Putnam County: 7.6 %Randolph County: 7.6 %Richland County: 7.7 %Rock Island County: 7.2 %St. Clair County: 6.3 %Saline County: 8.1 %Sangamon County: 6.5 %Schuyler County: 8.2 %Scott County: 7.4 %Shelby County: 7.9 %Stark County: 8 %Stephenson County: 8.1 %Tazewell County: 6.6 %Union County: 8.2 %Vermilion County: 8 %Wabash County: 8.1 %Warren County: 7.1 %Washington County: 7.2 %Wayne County: 8.4 %White County: 8.5 %Whiteside County: 7.5 %Will County: 5.1 %Williamson County: 7.1 %Winnebago County: 7.2 %Woodford County: 6.2 %
  • Under 6.4
  • 6.4 to 7.1
  • 7.1 to 7.4
  • 7.4 to 7.8
  • 7.8 to 8.1
  • 8.1 and over
%, 2021. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), coronary heart disease in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Alexander County: 10 %Alexander County10Pope County: 9.8 %Pope County9.8Hardin County: 9.2 %Hardin County9.2Pulaski County: 9 %Pulaski County9Gallatin County: 8.9 %Gallatin County8.9Carroll County: 8.6 %Carroll County8.6Jo Daviess County: 8.6 %Jo Daviess County8.6White County: 8.5 %White County8.5Henderson County: 8.4 %Henderson County8.4Wayne County: 8.4 %Wayne County8.4Franklin County: 8.3 %Franklin County8.3Mason County: 8.2 %Mason County8.2Massac County: 8.2 %Massac County8.2Schuyler County: 8.2 %Schuyler County8.2Union County: 8.2 %Union County8.2Edgar County: 8.1 %Edgar County8.1Edwards County: 8.1 %Edwards County8.1Hamilton County: 8.1 %Hamilton County8.1Iroquois County: 8.1 %Iroquois County8.1Knox County: 8.1 %Knox County8.1Pike County: 8.1 %Pike County8.1Saline County: 8.1 %Saline County8.1Stephenson County: 8.1 %Stephenson County8.1Wabash County: 8.1 %Wabash County8.1Clay County: 8 %Clay County8Hancock County: 8 %Hancock County8Marion County: 8 %Marion County8Marshall County: 8 %Marshall County8Stark County: 8 %Stark County8Vermilion County: 8 %Vermilion County8Bureau County: 7.9 %Bureau County7.9Fayette County: 7.9 %Fayette County7.9Shelby County: 7.9 %Shelby County7.9Calhoun County: 7.8 %Calhoun County7.8Greene County: 7.8 %Greene County7.8Johnson County: 7.8 %Johnson County7.8Macoupin County: 7.8 %Macoupin County7.8Fulton County: 7.7 %Fulton County7.7Mercer County: 7.7 %Mercer County7.7Montgomery County: 7.7 %Montgomery County7.7Alexander County: 10 %Alexander County10Pope County: 9.8 %Pope County9.8Hardin County: 9.2 %Hardin County9.2Pulaski County: 9 %Pulaski County9Gallatin County: 8.9 %Gallatin County8.9Carroll County: 8.6 %Carroll County8.6Jo Daviess County: 8.6 %Jo Daviess County8.6White County: 8.5 %White County8.5Henderson County: 8.4 %Henderson County8.4Wayne County: 8.4 %Wayne County8.4Franklin County: 8.3 %Franklin County8.3Mason County: 8.2 %Mason County8.2Massac County: 8.2 %Massac County8.2Schuyler County: 8.2 %Schuyler County8.2Union County: 8.2 %Union County8.2Edgar County: 8.1 %Edgar County8.1Edwards County: 8.1 %Edwards County8.1Hamilton County: 8.1 %Hamilton County8.1Iroquois County: 8.1 %Iroquois County8.1Knox County: 8.1 %Knox County8.1Pike County: 8.1 %Pike County8.1Saline County: 8.1 %Saline County8.1Stephenson County: 8.1 %Stephenson County8.1Wabash County: 8.1 %Wabash County8.1Clay County: 8 %Clay County8Hancock County: 8 %Hancock County8Marion County: 8 %Marion County8Marshall County: 8 %Marshall County8Stark County: 8 %Stark County8Vermilion County: 8 %Vermilion County8Bureau County: 7.9 %Bureau County7.9Fayette County: 7.9 %Fayette County7.9Shelby County: 7.9 %Shelby County7.9Calhoun County: 7.8 %Calhoun County7.8Greene County: 7.8 %Greene County7.8Johnson County: 7.8 %Johnson County7.8Macoupin County: 7.8 %Macoupin County7.8Fulton County: 7.7 %Fulton County7.7Mercer County: 7.7 %Mercer County7.7Montgomery County: 7.7 %Montgomery County7.7
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), coronary heart disease in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Alexander County10
2Pope County9.8
3Hardin County9.2
4Pulaski County9
5Gallatin County8.9
6Carroll County8.6
6Jo Daviess County8.6
8White County8.5
9Henderson County8.4
9Wayne County8.4
11Franklin County8.3
12Mason County8.2
12Massac County8.2
12Schuyler County8.2
12Union County8.2
16Edgar County8.1
16Edwards County8.1
16Hamilton County8.1
16Iroquois County8.1
16Knox County8.1
16Pike County8.1
16Saline County8.1
16Stephenson County8.1
16Wabash County8.1
25Clay County8
25Hancock County8
25Marion County8
25Marshall County8
25Stark County8
25Vermilion County8
31Bureau County7.9
31Fayette County7.9
31Shelby County7.9
34Calhoun County7.8
34Greene County7.8
34Johnson County7.8
34Macoupin County7.8
38Fulton County7.7
38Mercer County7.7
38Montgomery County7.7
38Perry County7.7
38Richland County7.7
43Christian County7.6
43Putnam County7.6
43Randolph County7.6
46Cass County7.5
46Jasper County7.5
46Macon County7.5
46Whiteside County7.5
50Adams County7.4
50Bond County7.4
50De Witt County7.4
50Ford County7.4
50Jefferson County7.4
50Lee County7.4
50Livingston County7.4
50Morgan County7.4
50Scott County7.4
59Cumberland County7.3
60Douglas County7.2
60Rock Island County7.2
60Washington County7.2
60Winnebago County7.2
64Crawford County7.1
64Henry County7.1
64LaSalle County7.1
64Lawrence County7.1
64Ogle County7.1
64Warren County7.1
64Williamson County7.1
71Clark County7
71Moultrie County7
73Effingham County6.8
73Menard County6.8
75Coles County6.6
75Jersey County6.6
75Kankakee County6.6
75Peoria County6.6
75Tazewell County6.6
80Clinton County6.5
80McDonough County6.5
80Piatt County6.5
80Sangamon County6.5
84Jackson County6.4
84Logan County6.4
84Madison County6.4
87Boone County6.3
87St. Clair County6.3
89Woodford County6.2
90Brown County6.1
91Monroe County5.9
92Grundy County5.6
93Kane County5.5
93McHenry County5.5
95Cook County5.4
96Lake County5.3
97DeKalb County5.1
97DuPage County5.1
97Will County5.1
100McLean County5
101Champaign County4.8
102Kendall County4.3

Other periods

About this ranking

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

BibTeX
@misc{centers_counties_in_illinois_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), coronary heart disease in adults, crude prevalence: Counties in Illinois by coronary heart disease 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-coronary-heart-disease-rate-county-estimate/illinois-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), coronary heart disease 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), coronary heart disease in adults, crude prevalence: Counties in Illinois by coronary heart disease 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-coronary-heart-disease-rate-county-estimate/illinois-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-coronary-heart-disease-rate-county-estimate/illinois-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), coronary heart disease 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 coronary heart disease in adults, local model estimate using official data, and cite the source.
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Questions

Which county has the highest coronary heart disease in adults, local model estimate?

Alexander County, with 10% in 2021, according to the Centers for Disease Control and Prevention.

Which county has the lowest coronary heart disease in adults, local model estimate?

Kendall County, with 4.3% 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), coronary heart disease in adults, crude prevalence. Retrieved 2026-10-12.

Coronary heart disease in adults, local model estimate: other rankings

Counties in Illinois: more rankings