Data / Rankings / Depression in adults, local model estimate / Counties in Iowa

Counties in Iowa by depression in adults, local model estimate

Marshall County had the highest depression in adults, local model estimate of 99 counties in 2021, at 20.8%. Buena Vista County had the lowest, at 14%. The median was 17.6%. Source: the Centers for Disease Control and Prevention.

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Highest20.8Marshall County
Lowest14Buena Vista County
Median17.699 counties

Map of counties, 2021

Adair County: 17.1 %Adams County: 16.9 %Allamakee County: 16.8 %Appanoose County: 19.1 %Audubon County: 17.4 %Benton County: 17.1 %Black Hawk County: 19.2 %Boone County: 17.6 %Bremer County: 17.2 %Buchanan County: 16.9 %Buena Vista County: 14 %Butler County: 17.7 %Calhoun County: 16.9 %Carroll County: 17.6 %Cass County: 18.3 %Cedar County: 17.7 %Cerro Gordo County: 18 %Cherokee County: 17.1 %Chickasaw County: 17.8 %Clarke County: 18 %Clay County: 17.5 %Clayton County: 17 %Clinton County: 18.3 %Crawford County: 16.6 %Dallas County: 17.1 %Davis County: 18.9 %Decatur County: 18.6 %Delaware County: 17.3 %Des Moines County: 20.3 %Dickinson County: 16.8 %Dubuque County: 17.2 %Emmet County: 18.6 %Fayette County: 17.9 %Floyd County: 17.1 %Franklin County: 17.4 %Fremont County: 18 %Greene County: 17.7 %Grundy County: 17.1 %Guthrie County: 17.2 %Hamilton County: 17.2 %Hancock County: 17.4 %Hardin County: 17.6 %Harrison County: 18.6 %Henry County: 18.9 %Howard County: 17.5 %Humboldt County: 18.1 %Ida County: 17 %Iowa County: 18.2 %Jackson County: 17.7 %Jasper County: 18.2 %Jefferson County: 17.6 %Johnson County: 19.6 %Jones County: 17.8 %Keokuk County: 18.1 %Kossuth County: 17 %Lee County: 18.3 %Linn County: 20.1 %Louisa County: 17.3 %Lucas County: 17.8 %Lyon County: 16.7 %Madison County: 17.5 %Mahaska County: 18 %Marion County: 17.9 %Marshall County: 20.8 %Mills County: 17.7 %Mitchell County: 17.5 %Monona County: 17.9 %Monroe County: 18.1 %Montgomery County: 18.6 %Muscatine County: 19 %O'Brien County: 17 %Osceola County: 16.8 %Page County: 17.7 %Palo Alto County: 17.3 %Plymouth County: 17 %Pocahontas County: 18.4 %Polk County: 19.2 %Pottawattamie County: 17.6 %Poweshiek County: 17.5 %Ringgold County: 17.9 %Sac County: 17.1 %Scott County: 17.1 %Shelby County: 16.6 %Sioux County: 15.7 %Story County: 19.3 %Tama County: 18 %Taylor County: 17.1 %Union County: 17.7 %Van Buren County: 18.4 %Wapello County: 18.3 %Warren County: 17.3 %Washington County: 17.6 %Wayne County: 18.3 %Webster County: 18.1 %Winnebago County: 17.1 %Winneshiek County: 17.3 %Woodbury County: 18.9 %Worth County: 17.2 %Wright County: 17.1 %
  • Under 17
  • 17 to 18
  • 18 and over
%, 2021. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), depression in adults, crude prevalence. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Marshall County: 20.8 %Marshall County20.8Des Moines County: 20.3 %Des Moines County20.3Linn County: 20.1 %Linn County20.1Johnson County: 19.6 %Johnson County19.6Story County: 19.3 %Story County19.3Black Hawk County: 19.2 %Black Hawk County19.2Polk County: 19.2 %Polk County19.2Appanoose County: 19.1 %Appanoose County19.1Muscatine County: 19 %Muscatine County19Davis County: 18.9 %Davis County18.9Henry County: 18.9 %Henry County18.9Woodbury County: 18.9 %Woodbury County18.9Decatur County: 18.6 %Decatur County18.6Emmet County: 18.6 %Emmet County18.6Harrison County: 18.6 %Harrison County18.6Montgomery County: 18.6 %Montgomery County18.6Pocahontas County: 18.4 %Pocahontas County18.4Van Buren County: 18.4 %Van Buren County18.4Cass County: 18.3 %Cass County18.3Clinton County: 18.3 %Clinton County18.3Lee County: 18.3 %Lee County18.3Wapello County: 18.3 %Wapello County18.3Wayne County: 18.3 %Wayne County18.3Iowa County: 18.2 %Iowa County18.2Jasper County: 18.2 %Jasper County18.2Humboldt County: 18.1 %Humboldt County18.1Keokuk County: 18.1 %Keokuk County18.1Monroe County: 18.1 %Monroe County18.1Webster County: 18.1 %Webster County18.1Cerro Gordo County: 18 %Cerro Gordo County18Clarke County: 18 %Clarke County18Fremont County: 18 %Fremont County18Mahaska County: 18 %Mahaska County18Tama County: 18 %Tama County18Fayette County: 17.9 %Fayette County17.9Marion County: 17.9 %Marion County17.9Monona County: 17.9 %Monona County17.9Ringgold County: 17.9 %Ringgold County17.9Chickasaw County: 17.8 %Chickasaw County17.8Jones County: 17.8 %Jones County17.8Marshall County: 20.8 %Marshall County20.8Des Moines County: 20.3 %Des Moines County20.3Linn County: 20.1 %Linn County20.1Johnson County: 19.6 %Johnson County19.6Story County: 19.3 %Story County19.3Black Hawk County: 19.2 %Black Hawk County19.2Polk County: 19.2 %Polk County19.2Appanoose County: 19.1 %Appanoose County19.1Muscatine County: 19 %Muscatine County19Davis County: 18.9 %Davis County18.9Henry County: 18.9 %Henry County18.9Woodbury County: 18.9 %Woodbury County18.9Decatur County: 18.6 %Decatur County18.6Emmet County: 18.6 %Emmet County18.6Harrison County: 18.6 %Harrison County18.6Montgomery County: 18.6 %Montgomery County18.6Pocahontas County: 18.4 %Pocahontas County18.4Van Buren County: 18.4 %Van Buren County18.4Cass County: 18.3 %Cass County18.3Clinton County: 18.3 %Clinton County18.3Lee County: 18.3 %Lee County18.3Wapello County: 18.3 %Wapello County18.3Wayne County: 18.3 %Wayne County18.3Iowa County: 18.2 %Iowa County18.2Jasper County: 18.2 %Jasper County18.2Humboldt County: 18.1 %Humboldt County18.1Keokuk County: 18.1 %Keokuk County18.1Monroe County: 18.1 %Monroe County18.1Webster County: 18.1 %Webster County18.1Cerro Gordo County: 18 %Cerro Gordo County18Clarke County: 18 %Clarke County18Fremont County: 18 %Fremont County18Mahaska County: 18 %Mahaska County18Tama County: 18 %Tama County18Fayette County: 17.9 %Fayette County17.9Marion County: 17.9 %Marion County17.9Monona County: 17.9 %Monona County17.9Ringgold County: 17.9 %Ringgold County17.9Chickasaw County: 17.8 %Chickasaw County17.8Jones County: 17.8 %Jones County17.8
%. Source: CDC, PLACES: Local Data for Better Health, County Data (swc5-untb, fu4u-a9bh, h3ej-a9ec and later releases), depression in adults, crude prevalence. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Marshall County20.8
2Des Moines County20.3
3Linn County20.1
4Johnson County19.6
5Story County19.3
6Black Hawk County19.2
6Polk County19.2
8Appanoose County19.1
9Muscatine County19
10Davis County18.9
10Henry County18.9
10Woodbury County18.9
13Decatur County18.6
13Emmet County18.6
13Harrison County18.6
13Montgomery County18.6
17Pocahontas County18.4
17Van Buren County18.4
19Cass County18.3
19Clinton County18.3
19Lee County18.3
19Wapello County18.3
19Wayne County18.3
24Iowa County18.2
24Jasper County18.2
26Humboldt County18.1
26Keokuk County18.1
26Monroe County18.1
26Webster County18.1
30Cerro Gordo County18
30Clarke County18
30Fremont County18
30Mahaska County18
30Tama County18
35Fayette County17.9
35Marion County17.9
35Monona County17.9
35Ringgold County17.9
39Chickasaw County17.8
39Jones County17.8
39Lucas County17.8
42Butler County17.7
42Cedar County17.7
42Greene County17.7
42Jackson County17.7
42Mills County17.7
42Page County17.7
42Union County17.7
49Boone County17.6
49Carroll County17.6
49Hardin County17.6
49Jefferson County17.6
49Pottawattamie County17.6
49Washington County17.6
55Clay County17.5
55Howard County17.5
55Madison County17.5
55Mitchell County17.5
55Poweshiek County17.5
60Audubon County17.4
60Franklin County17.4
60Hancock County17.4
63Delaware County17.3
63Louisa County17.3
63Palo Alto County17.3
63Warren County17.3
63Winneshiek County17.3
68Bremer County17.2
68Dubuque County17.2
68Guthrie County17.2
68Hamilton County17.2
68Worth County17.2
73Adair County17.1
73Benton County17.1
73Cherokee County17.1
73Dallas County17.1
73Floyd County17.1
73Grundy County17.1
73Sac County17.1
73Scott County17.1
73Taylor County17.1
73Winnebago County17.1
73Wright County17.1
84Clayton County17
84Ida County17
84Kossuth County17
84O'Brien County17
84Plymouth County17
89Adams County16.9
89Buchanan County16.9
89Calhoun County16.9
92Allamakee County16.8
92Dickinson County16.8
92Osceola County16.8
95Lyon County16.7
96Crawford County16.6
96Shelby County16.6
98Sioux County15.7
99Buena Vista County14

Other periods

About this ranking

Percentage of adults who have ever been told by a doctor, nurse or other health professional that they had a depressive disorder. 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), depression 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), depression in adults, crude prevalence (Counties in Iowa by depression 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), depression in adults, crude prevalence, Counties in Iowa by depression 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-depression-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), depression in adults, crude prevalence. Counties in Iowa by depression 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-depression-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), depression in adults, crude prevalence, Counties in Iowa by depression in adults, local model estimate, 2021 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-depression-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), depression in adults, crude prevalence: Counties in Iowa by depression 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-depression-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), depression 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), depression in adults, crude prevalence: Counties in Iowa by depression 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-depression-rate-county-estimate/iowa-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-depression-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), depression 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 Iowa by depression in adults, local model estimate using official data, and cite the source.
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Questions

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

Marshall County, with 20.8% in 2021, according to the Centers for Disease Control and Prevention.

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

Buena Vista County, with 14% 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), depression in adults, crude prevalence. Retrieved 2026-10-12.

Depression in adults, local model estimate: other rankings

Counties in Iowa: more rankings