Data / Rankings / Frequent mental distress in adults, local model estimate / Counties in Illinois

Counties in Illinois by frequent mental distress in adults, local model estimate

Jackson County had the highest frequent mental distress in adults, local model estimate of 102 counties in 2021, at 17.8%. DuPage County had the lowest, at 11.7%. The median was 15.3%. Source: the Centers for Disease Control and Prevention.

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Highest17.8Jackson County
Lowest11.7DuPage County
Median15.3102 counties

Map of counties, 2021

Adams County: 15.1 %Alexander County: 16.5 %Bond County: 15.6 %Boone County: 14.6 %Brown County: 15.9 %Bureau County: 14.9 %Calhoun County: 13.8 %Carroll County: 14.4 %Cass County: 15.6 %Champaign County: 16.3 %Christian County: 15.4 %Clark County: 14.5 %Clay County: 16.1 %Clinton County: 14.6 %Coles County: 17.1 %Cook County: 13.3 %Crawford County: 15.4 %Cumberland County: 14.6 %DeKalb County: 16.5 %De Witt County: 15.3 %Douglas County: 15.9 %DuPage County: 11.7 %Edgar County: 15.3 %Edwards County: 15.4 %Effingham County: 15 %Fayette County: 16.4 %Ford County: 15.3 %Franklin County: 16.4 %Fulton County: 15.4 %Gallatin County: 15.8 %Greene County: 15.7 %Grundy County: 14.6 %Hamilton County: 15.6 %Hancock County: 14.3 %Hardin County: 15 %Henderson County: 13.8 %Henry County: 14.3 %Iroquois County: 15.3 %Jackson County: 17.8 %Jasper County: 14.8 %Jefferson County: 15.8 %Jersey County: 14.6 %Jo Daviess County: 13.3 %Johnson County: 15.2 %Kane County: 13.9 %Kankakee County: 15.8 %Kendall County: 13.6 %Knox County: 16 %Lake County: 13.1 %LaSalle County: 15.1 %Lawrence County: 16.1 %Lee County: 14.7 %Livingston County: 15.6 %Logan County: 15.4 %McDonough County: 17.5 %McHenry County: 13.5 %McLean County: 15.5 %Macon County: 15.5 %Macoupin County: 15.8 %Madison County: 15.2 %Marion County: 16.2 %Marshall County: 14.6 %Mason County: 15.3 %Massac County: 15.8 %Menard County: 14.1 %Mercer County: 14.9 %Monroe County: 13 %Montgomery County: 15.5 %Morgan County: 16 %Moultrie County: 15.4 %Ogle County: 14.8 %Peoria County: 15.1 %Perry County: 16.5 %Piatt County: 13.7 %Pike County: 15.7 %Pope County: 15.1 %Pulaski County: 16 %Putnam County: 13.9 %Randolph County: 15.9 %Richland County: 15.2 %Rock Island County: 15.1 %St. Clair County: 14.9 %Saline County: 16.2 %Sangamon County: 14.5 %Schuyler County: 14.8 %Scott County: 14.8 %Shelby County: 14.5 %Stark County: 14.9 %Stephenson County: 14.8 %Tazewell County: 14.5 %Union County: 15.4 %Vermilion County: 16.2 %Wabash County: 15.3 %Warren County: 15.4 %Washington County: 14.1 %Wayne County: 15.9 %White County: 16 %Whiteside County: 14.6 %Will County: 13.5 %Williamson County: 15.1 %Winnebago County: 15.7 %Woodford County: 13.8 %
  • Under 14
  • 14 to 15
  • 15 to 16
  • 16 and over
%, 2021. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), frequent mental distress in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Jackson County: 17.8 %Jackson County17.8McDonough County: 17.5 %McDonough County17.5Coles County: 17.1 %Coles County17.1Alexander County: 16.5 %Alexander County16.5DeKalb County: 16.5 %DeKalb County16.5Perry County: 16.5 %Perry County16.5Fayette County: 16.4 %Fayette County16.4Franklin County: 16.4 %Franklin County16.4Champaign County: 16.3 %Champaign County16.3Marion County: 16.2 %Marion County16.2Saline County: 16.2 %Saline County16.2Vermilion County: 16.2 %Vermilion County16.2Clay County: 16.1 %Clay County16.1Lawrence County: 16.1 %Lawrence County16.1Knox County: 16 %Knox County16Morgan County: 16 %Morgan County16Pulaski County: 16 %Pulaski County16White County: 16 %White County16Brown County: 15.9 %Brown County15.9Douglas County: 15.9 %Douglas County15.9Randolph County: 15.9 %Randolph County15.9Wayne County: 15.9 %Wayne County15.9Gallatin County: 15.8 %Gallatin County15.8Jefferson County: 15.8 %Jefferson County15.8Kankakee County: 15.8 %Kankakee County15.8Macoupin County: 15.8 %Macoupin County15.8Massac County: 15.8 %Massac County15.8Greene County: 15.7 %Greene County15.7Pike County: 15.7 %Pike County15.7Winnebago County: 15.7 %Winnebago County15.7Bond County: 15.6 %Bond County15.6Cass County: 15.6 %Cass County15.6Hamilton County: 15.6 %Hamilton County15.6Livingston County: 15.6 %Livingston County15.6Macon County: 15.5 %Macon County15.5McLean County: 15.5 %McLean County15.5Montgomery County: 15.5 %Montgomery County15.5Christian County: 15.4 %Christian County15.4Crawford County: 15.4 %Crawford County15.4Edwards County: 15.4 %Edwards County15.4Jackson County: 17.8 %Jackson County17.8McDonough County: 17.5 %McDonough County17.5Coles County: 17.1 %Coles County17.1Alexander County: 16.5 %Alexander County16.5DeKalb County: 16.5 %DeKalb County16.5Perry County: 16.5 %Perry County16.5Fayette County: 16.4 %Fayette County16.4Franklin County: 16.4 %Franklin County16.4Champaign County: 16.3 %Champaign County16.3Marion County: 16.2 %Marion County16.2Saline County: 16.2 %Saline County16.2Vermilion County: 16.2 %Vermilion County16.2Clay County: 16.1 %Clay County16.1Lawrence County: 16.1 %Lawrence County16.1Knox County: 16 %Knox County16Morgan County: 16 %Morgan County16Pulaski County: 16 %Pulaski County16White County: 16 %White County16Brown County: 15.9 %Brown County15.9Douglas County: 15.9 %Douglas County15.9Randolph County: 15.9 %Randolph County15.9Wayne County: 15.9 %Wayne County15.9Gallatin County: 15.8 %Gallatin County15.8Jefferson County: 15.8 %Jefferson County15.8Kankakee County: 15.8 %Kankakee County15.8Macoupin County: 15.8 %Macoupin County15.8Massac County: 15.8 %Massac County15.8Greene County: 15.7 %Greene County15.7Pike County: 15.7 %Pike County15.7Winnebago County: 15.7 %Winnebago County15.7Bond County: 15.6 %Bond County15.6Cass County: 15.6 %Cass County15.6Hamilton County: 15.6 %Hamilton County15.6Livingston County: 15.6 %Livingston County15.6Macon County: 15.5 %Macon County15.5McLean County: 15.5 %McLean County15.5Montgomery County: 15.5 %Montgomery County15.5Christian County: 15.4 %Christian County15.4Crawford County: 15.4 %Crawford County15.4Edwards County: 15.4 %Edwards County15.4
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), frequent mental distress in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Jackson County17.8
2McDonough County17.5
3Coles County17.1
4Alexander County16.5
4DeKalb County16.5
4Perry County16.5
7Fayette County16.4
7Franklin County16.4
9Champaign County16.3
10Marion County16.2
10Saline County16.2
10Vermilion County16.2
13Clay County16.1
13Lawrence County16.1
15Knox County16
15Morgan County16
15Pulaski County16
15White County16
19Brown County15.9
19Douglas County15.9
19Randolph County15.9
19Wayne County15.9
23Gallatin County15.8
23Jefferson County15.8
23Kankakee County15.8
23Macoupin County15.8
23Massac County15.8
28Greene County15.7
28Pike County15.7
28Winnebago County15.7
31Bond County15.6
31Cass County15.6
31Hamilton County15.6
31Livingston County15.6
35Macon County15.5
35McLean County15.5
35Montgomery County15.5
38Christian County15.4
38Crawford County15.4
38Edwards County15.4
38Fulton County15.4
38Logan County15.4
38Moultrie County15.4
38Union County15.4
38Warren County15.4
46De Witt County15.3
46Edgar County15.3
46Ford County15.3
46Iroquois County15.3
46Mason County15.3
46Wabash County15.3
52Johnson County15.2
52Madison County15.2
52Richland County15.2
55Adams County15.1
55LaSalle County15.1
55Peoria County15.1
55Pope County15.1
55Rock Island County15.1
55Williamson County15.1
61Effingham County15
61Hardin County15
63Bureau County14.9
63Mercer County14.9
63St. Clair County14.9
63Stark County14.9
67Jasper County14.8
67Ogle County14.8
67Schuyler County14.8
67Scott County14.8
67Stephenson County14.8
72Lee County14.7
73Boone County14.6
73Clinton County14.6
73Cumberland County14.6
73Grundy County14.6
73Jersey County14.6
73Marshall County14.6
73Whiteside County14.6
80Clark County14.5
80Sangamon County14.5
80Shelby County14.5
80Tazewell County14.5
84Carroll County14.4
85Hancock County14.3
85Henry County14.3
87Menard County14.1
87Washington County14.1
89Kane County13.9
89Putnam County13.9
91Calhoun County13.8
91Henderson County13.8
91Woodford County13.8
94Piatt County13.7
95Kendall County13.6
96McHenry County13.5
96Will County13.5
98Cook County13.3
98Jo Daviess County13.3
100Lake County13.1
101Monroe County13
102DuPage County11.7

Other periods

About this ranking

Percentage of adults who say their mental health was not good on 14 or more of the past 30 days. 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), frequent mental distress 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), frequent mental distress in adults, crude prevalence (Counties in Illinois by frequent mental distress 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), frequent mental distress in adults, crude prevalence, Counties in Illinois by frequent mental distress 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-frequent-mental-distress-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), frequent mental distress in adults, crude prevalence. Counties in Illinois by frequent mental distress 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-frequent-mental-distress-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), frequent mental distress in adults, crude prevalence, Counties in Illinois by frequent mental distress in adults, local model estimate, 2021 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-frequent-mental-distress-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), frequent mental distress in adults, crude prevalence: Counties in Illinois by frequent mental distress 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-frequent-mental-distress-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), frequent mental distress 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), frequent mental distress in adults, crude prevalence: Counties in Illinois by frequent mental distress 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-frequent-mental-distress-rate-county-estimate/illinois-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-frequent-mental-distress-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), frequent mental distress 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 frequent mental distress in adults, local model estimate using official data, and cite the source.
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Questions

Which county has the highest frequent mental distress in adults, local model estimate?

Jackson County, with 17.8% in 2021, according to the Centers for Disease Control and Prevention.

Which county has the lowest frequent mental distress in adults, local model estimate?

DuPage County, with 11.7% 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), frequent mental distress in adults, crude prevalence. Retrieved 2026-10-12.

Frequent mental distress in adults, local model estimate: other rankings

Counties in Illinois: more rankings