Data / Rankings / Diagnosed diabetes in adults, local model estimate / Counties in Illinois

Counties in Illinois by diagnosed diabetes in adults, local model estimate

Alexander County had the highest diagnosed diabetes in adults, local model estimate of 102 counties in 2022, at 18.4%. Champaign County had the lowest, at 9.3%. The median was 12.6%. Source: the Centers for Disease Control and Prevention.

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Highest18.4Alexander County
Lowest9.3Champaign County
Median12.6102 counties

Map of counties, 2022

Adams County: 11.7 %Alexander County: 18.4 %Bond County: 12.6 %Boone County: 12.4 %Brown County: 11.8 %Bureau County: 14.4 %Calhoun County: 12.2 %Carroll County: 13 %Cass County: 13.1 %Champaign County: 9.3 %Christian County: 12.3 %Clark County: 11.6 %Clay County: 13.5 %Clinton County: 11 %Coles County: 11.7 %Cook County: 11.9 %Crawford County: 12 %Cumberland County: 12.2 %DeKalb County: 9.9 %De Witt County: 12 %Douglas County: 11.9 %DuPage County: 10.9 %Edgar County: 13.6 %Edwards County: 12.6 %Effingham County: 10.7 %Fayette County: 12.2 %Ford County: 11.6 %Franklin County: 14.1 %Fulton County: 13.5 %Gallatin County: 14.8 %Greene County: 13.1 %Grundy County: 10.2 %Hamilton County: 13.3 %Hancock County: 12.6 %Hardin County: 14.7 %Henderson County: 13.5 %Henry County: 11.1 %Iroquois County: 13.5 %Jackson County: 11.9 %Jasper County: 11.8 %Jefferson County: 12.8 %Jersey County: 11.7 %Jo Daviess County: 13.5 %Johnson County: 12.3 %Kane County: 11.3 %Kankakee County: 12.7 %Kendall County: 9.5 %Knox County: 13.7 %Lake County: 11.9 %LaSalle County: 12.6 %Lawrence County: 13.3 %Lee County: 13.3 %Livingston County: 12.2 %Logan County: 12.1 %McDonough County: 11.8 %McHenry County: 10.8 %McLean County: 10 %Macon County: 12.9 %Macoupin County: 13.2 %Madison County: 10.9 %Marion County: 13.3 %Marshall County: 13.3 %Mason County: 13 %Massac County: 14.4 %Menard County: 11.5 %Mercer County: 12.5 %Monroe County: 10.2 %Montgomery County: 12.5 %Morgan County: 12.6 %Moultrie County: 11.1 %Ogle County: 12.7 %Peoria County: 12 %Perry County: 14.1 %Piatt County: 11 %Pike County: 12.9 %Pope County: 15.1 %Pulaski County: 17.2 %Putnam County: 12 %Randolph County: 12.8 %Richland County: 12.6 %Rock Island County: 12.8 %St. Clair County: 12.8 %Saline County: 13.8 %Sangamon County: 11.5 %Schuyler County: 13.8 %Scott County: 11.8 %Shelby County: 13 %Stark County: 12.6 %Stephenson County: 13.9 %Tazewell County: 11.5 %Union County: 13.2 %Vermilion County: 14 %Wabash County: 13.5 %Warren County: 13 %Washington County: 11.5 %Wayne County: 13.1 %White County: 14.5 %Whiteside County: 12.3 %Will County: 10.9 %Williamson County: 12.3 %Winnebago County: 13.6 %Woodford County: 11.7 %
  • Under 12
  • 12 to 13
  • 13 to 14
  • 14 and over
%, 2022. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2022

Alexander County: 18.4 %Alexander County18.4Pulaski County: 17.2 %Pulaski County17.2Pope County: 15.1 %Pope County15.1Gallatin County: 14.8 %Gallatin County14.8Hardin County: 14.7 %Hardin County14.7White County: 14.5 %White County14.5Bureau County: 14.4 %Bureau County14.4Massac County: 14.4 %Massac County14.4Franklin County: 14.1 %Franklin County14.1Perry County: 14.1 %Perry County14.1Vermilion County: 14 %Vermilion County14Stephenson County: 13.9 %Stephenson County13.9Saline County: 13.8 %Saline County13.8Schuyler County: 13.8 %Schuyler County13.8Knox County: 13.7 %Knox County13.7Edgar County: 13.6 %Edgar County13.6Winnebago County: 13.6 %Winnebago County13.6Clay County: 13.5 %Clay County13.5Fulton County: 13.5 %Fulton County13.5Henderson County: 13.5 %Henderson County13.5Iroquois County: 13.5 %Iroquois County13.5Jo Daviess County: 13.5 %Jo Daviess County13.5Wabash County: 13.5 %Wabash County13.5Hamilton County: 13.3 %Hamilton County13.3Lawrence County: 13.3 %Lawrence County13.3Lee County: 13.3 %Lee County13.3Marion County: 13.3 %Marion County13.3Marshall County: 13.3 %Marshall County13.3Macoupin County: 13.2 %Macoupin County13.2Union County: 13.2 %Union County13.2Cass County: 13.1 %Cass County13.1Greene County: 13.1 %Greene County13.1Wayne County: 13.1 %Wayne County13.1Carroll County: 13 %Carroll County13Mason County: 13 %Mason County13Shelby County: 13 %Shelby County13Warren County: 13 %Warren County13Macon County: 12.9 %Macon County12.9Pike County: 12.9 %Pike County12.9Jefferson County: 12.8 %Jefferson County12.8Alexander County: 18.4 %Alexander County18.4Pulaski County: 17.2 %Pulaski County17.2Pope County: 15.1 %Pope County15.1Gallatin County: 14.8 %Gallatin County14.8Hardin County: 14.7 %Hardin County14.7White County: 14.5 %White County14.5Bureau County: 14.4 %Bureau County14.4Massac County: 14.4 %Massac County14.4Franklin County: 14.1 %Franklin County14.1Perry County: 14.1 %Perry County14.1Vermilion County: 14 %Vermilion County14Stephenson County: 13.9 %Stephenson County13.9Saline County: 13.8 %Saline County13.8Schuyler County: 13.8 %Schuyler County13.8Knox County: 13.7 %Knox County13.7Edgar County: 13.6 %Edgar County13.6Winnebago County: 13.6 %Winnebago County13.6Clay County: 13.5 %Clay County13.5Fulton County: 13.5 %Fulton County13.5Henderson County: 13.5 %Henderson County13.5Iroquois County: 13.5 %Iroquois County13.5Jo Daviess County: 13.5 %Jo Daviess County13.5Wabash County: 13.5 %Wabash County13.5Hamilton County: 13.3 %Hamilton County13.3Lawrence County: 13.3 %Lawrence County13.3Lee County: 13.3 %Lee County13.3Marion County: 13.3 %Marion County13.3Marshall County: 13.3 %Marshall County13.3Macoupin County: 13.2 %Macoupin County13.2Union County: 13.2 %Union County13.2Cass County: 13.1 %Cass County13.1Greene County: 13.1 %Greene County13.1Wayne County: 13.1 %Wayne County13.1Carroll County: 13 %Carroll County13Mason County: 13 %Mason County13Shelby County: 13 %Shelby County13Warren County: 13 %Warren County13Macon County: 12.9 %Macon County12.9Pike County: 12.9 %Pike County12.9Jefferson County: 12.8 %Jefferson County12.8
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), diagnosed diabetes in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Alexander County18.40 pts
2Pulaski County17.2+0.7 pts
3Pope County15.1+0.3 pts
4Gallatin County14.8+1.2 pts
5Hardin County14.7+1 pts
6White County14.5+1.4 pts
7Bureau County14.4+1.8 pts
7Massac County14.4+1.3 pts
9Franklin County14.1+0.9 pts
9Perry County14.1+1.6 pts
11Vermilion County14+0.4 pts
12Stephenson County13.9+0.8 pts
13Saline County13.8+1 pts
13Schuyler County13.8+1 pts
15Knox County13.7+0.7 pts
16Edgar County13.6+1.2 pts
16Winnebago County13.6+0.7 pts
18Clay County13.5+0.9 pts
18Fulton County13.5+1.2 pts
18Henderson County13.5+1.2 pts
18Iroquois County13.5+0.9 pts
18Jo Daviess County13.5+0.9 pts
18Wabash County13.5+1 pts
24Hamilton County13.3+0.8 pts
24Lawrence County13.3+1.5 pts
24Lee County13.3+1.5 pts
24Marion County13.3+0.4 pts
24Marshall County13.3+1.2 pts
29Macoupin County13.2+0.9 pts
29Union County13.2+0.3 pts
31Cass County13.1+0.4 pts
31Greene County13.1+0.9 pts
31Wayne County13.1+0.3 pts
34Carroll County13+0.2 pts
34Mason County13+0.5 pts
34Shelby County13+1.2 pts
34Warren County13+1.5 pts
38Macon County12.9+0.3 pts
38Pike County12.9+0.4 pts
40Jefferson County12.8+0.7 pts
40Randolph County12.8+0.5 pts
40Rock Island County12.8+0.2 pts
40St. Clair County12.8-0.2 pts
44Kankakee County12.7+0.9 pts
44Ogle County12.7+1.3 pts
46Bond County12.6+0.5 pts
46Edwards County12.6+0.1 pts
46Hancock County12.6+0.4 pts
46LaSalle County12.6+0.8 pts
46Morgan County12.6+0.6 pts
46Richland County12.6+0.7 pts
46Stark County12.6+0.5 pts
53Mercer County12.5+0.6 pts
53Montgomery County12.5+0.4 pts
55Boone County12.4+1.4 pts
56Christian County12.3+0.5 pts
56Johnson County12.3+0.2 pts
56Whiteside County12.3+0.1 pts
56Williamson County12.3+0.8 pts
60Calhoun County12.2+0.7 pts
60Cumberland County12.2+1 pts
60Fayette County12.2-0.2 pts
60Livingston County12.2+0.5 pts
64Logan County12.1+1.8 pts
65Crawford County12+0.6 pts
65De Witt County12+0.2 pts
65Peoria County12+0.3 pts
65Putnam County12+0.2 pts
69Cook County11.9+0.7 pts
69Douglas County11.9+0.6 pts
69Jackson County11.9+0.7 pts
69Lake County11.9+1.6 pts
73Brown County11.8+1.1 pts
73Jasper County11.8+0.3 pts
73McDonough County11.8+1.3 pts
73Scott County11.8+0.3 pts
77Adams County11.7+0.3 pts
77Coles County11.7+1.1 pts
77Jersey County11.7+1.4 pts
77Woodford County11.7+2.1 pts
81Clark County11.6+0.8 pts
81Ford County11.6+0.1 pts
83Menard County11.5+1 pts
83Sangamon County11.5+0.5 pts
83Tazewell County11.5+1.2 pts
83Washington County11.5+0.7 pts
87Kane County11.3+0.5 pts
88Henry County11.1-0.1 pts
88Moultrie County11.1+0.2 pts
90Clinton County11+0.7 pts
90Piatt County11+1 pts
92DuPage County10.9+1.5 pts
92Madison County10.9+0.1 pts
92Will County10.9+0.8 pts
95McHenry County10.8+1.3 pts
96Effingham County10.70 pts
97Grundy County10.2+0.7 pts
97Monroe County10.2+0.9 pts
99McLean County10+0.9 pts
100DeKalb County9.9+0.8 pts
101Kendall County9.5+1 pts
102Champaign County9.3+0.3 pts

Other periods

About this ranking

Percentage of adults who report being told by a doctor or other health professional that they have diabetes, other than diabetes only during pregnancy. 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), diagnosed diabetes 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), diagnosed diabetes in adults, crude prevalence (Counties in Illinois by diagnosed diabetes 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), diagnosed diabetes in adults, crude prevalence, Counties in Illinois by diagnosed diabetes 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-diabetes-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), diagnosed diabetes in adults, crude prevalence. Counties in Illinois by diagnosed diabetes 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-diabetes-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), diagnosed diabetes in adults, crude prevalence, Counties in Illinois by diagnosed diabetes in adults, local model estimate, 2022 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-diabetes-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), diagnosed diabetes in adults, crude prevalence: Counties in Illinois by diagnosed diabetes 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-diabetes-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), diagnosed diabetes 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), diagnosed diabetes in adults, crude prevalence: Counties in Illinois by diagnosed diabetes 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-diabetes-rate-county-estimate/illinois-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-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), diagnosed diabetes 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 diagnosed diabetes in adults, local model estimate using official data, and cite the source.
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Questions

Which county has the highest diagnosed diabetes in adults, local model estimate?

Alexander County, with 18.4% in 2022, according to the Centers for Disease Control and Prevention.

Which county has the lowest diagnosed diabetes in adults, local model estimate?

Champaign 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), diagnosed diabetes in adults, crude prevalence. Retrieved 2026-10-12.

Diagnosed diabetes in adults, local model estimate: other rankings

Counties in Illinois: more rankings