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

Story County had the highest frequent mental distress in adults, local model estimate of 99 counties in 2021, at 15.9%. Dickinson County had the lowest, at 12.6%. The median was 14.1%. Source: the Centers for Disease Control and Prevention.

Highest15.9Story County
Median14.199 counties

Top 40 counties, 2021

Story County: 15.9 %Story County15.9Black Hawk County: 15.8 %Black Hawk County15.8Johnson County: 15.8 %Johnson County15.8Decatur County: 15.7 %Decatur County15.7Wapello County: 15.7 %Wapello County15.7Clarke County: 15.3 %Clarke County15.3Marshall County: 15.3 %Marshall County15.3Appanoose County: 15.2 %Appanoose County15.2Crawford County: 15.2 %Crawford County15.2Davis County: 15.2 %Davis County15.2Van Buren County: 15.2 %Van Buren County15.2Webster County: 15.2 %Webster County15.2Des Moines County: 15.1 %Des Moines County15.1Mahaska County: 15.1 %Mahaska County15.1Lee County: 15 %Lee County15Woodbury County: 15 %Woodbury County15Tama County: 14.9 %Tama County14.9Wayne County: 14.9 %Wayne County14.9Fayette County: 14.8 %Fayette County14.8Montgomery County: 14.8 %Montgomery County14.8Pottawattamie County: 14.8 %Pottawattamie County14.8Lucas County: 14.7 %Lucas County14.7Cass County: 14.6 %Cass County14.6Emmet County: 14.6 %Emmet County14.6Henry County: 14.6 %Henry County14.6Keokuk County: 14.6 %Keokuk County14.6Muscatine County: 14.6 %Muscatine County14.6Clinton County: 14.5 %Clinton County14.5Harrison County: 14.5 %Harrison County14.5Humboldt County: 14.5 %Humboldt County14.5Page County: 14.5 %Page County14.5Polk County: 14.5 %Polk County14.5Union County: 14.5 %Union County14.5Jackson County: 14.4 %Jackson County14.4Monona County: 14.4 %Monona County14.4Poweshiek County: 14.4 %Poweshiek County14.4Clayton County: 14.3 %Clayton County14.3Jasper County: 14.3 %Jasper County14.3Ringgold County: 14.3 %Ringgold County14.3Franklin County: 14.2 %Franklin County14.2
%. 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 (%)
1Story County15.9
2Black Hawk County15.8
2Johnson County15.8
4Decatur County15.7
4Wapello County15.7
6Clarke County15.3
6Marshall County15.3
8Appanoose County15.2
8Crawford County15.2
8Davis County15.2
8Van Buren County15.2
8Webster County15.2
13Des Moines County15.1
13Mahaska County15.1
15Lee County15
15Woodbury County15
17Tama County14.9
17Wayne County14.9
19Fayette County14.8
19Montgomery County14.8
19Pottawattamie County14.8
22Lucas County14.7
23Cass County14.6
23Emmet County14.6
23Henry County14.6
23Keokuk County14.6
23Muscatine County14.6
28Clinton County14.5
28Harrison County14.5
28Humboldt County14.5
28Page County14.5
28Polk County14.5
28Union County14.5
34Jackson County14.4
34Monona County14.4
34Poweshiek County14.4
37Clayton County14.3
37Jasper County14.3
37Ringgold County14.3
40Franklin County14.2
40Ida County14.2
40Linn County14.2
40Monroe County14.2
40O'Brien County14.2
45Boone County14.1
45Greene County14.1
45Hardin County14.1
45Howard County14.1
45Louisa County14.1
45Pocahontas County14.1
51Adair County14
51Butler County14
51Chickasaw County14
51Dubuque County14
51Fremont County14
51Scott County14
51Wright County14
58Benton County13.9
58Buchanan County13.9
58Cerro Gordo County13.9
58Cherokee County13.9
58Jones County13.9
58Marion County13.9
58Winnebago County13.9
58Winneshiek County13.9
66Buena Vista County13.8
66Clay County13.8
66Hancock County13.8
66Mitchell County13.8
66Sac County13.8
66Warren County13.8
66Washington County13.8
73Calhoun County13.7
73Carroll County13.7
73Cedar County13.7
73Delaware County13.7
73Floyd County13.7
73Lyon County13.7
73Taylor County13.7
73Worth County13.7
81Allamakee County13.6
81Audubon County13.6
81Madison County13.6
81Osceola County13.6
81Palo Alto County13.6
86Adams County13.5
86Bremer County13.5
86Guthrie County13.5
86Iowa County13.5
86Kossuth County13.5
86Plymouth County13.5
92Hamilton County13.4
92Jefferson County13.4
92Shelby County13.4
95Mills County13.3
95Sioux County13.3
97Grundy County13.2
98Dallas County12.7
99Dickinson County12.6

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 Iowa 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 Iowa 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/iowa-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 Iowa 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/iowa-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 Iowa 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/iowa-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_iowa_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 Iowa 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/iowa-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 Iowa 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/iowa-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-frequent-mental-distress-rate-county-estimate/iowa-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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Questions

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

Story County, with 15.9% in 2021, according to the Centers for Disease Control and Prevention.

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

Dickinson County, with 12.6% 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 Iowa: more rankings