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

Counties in Iowa by diagnosed diabetes in adults, local model estimate, 2023

Appanoose County had the highest diagnosed diabetes in adults, local model estimate of 99 counties in 2023, at 15.4%. Story County had the lowest, at 8.1%. The median was 12.4%. Source: the Centers for Disease Control and Prevention.

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Highest15.4Appanoose County
Lowest8.1Story County
Median12.499 counties

Map of counties, 2023

Adair County: 13.1 %Adams County: 13.2 %Allamakee County: 13.1 %Appanoose County: 15.4 %Audubon County: 13.6 %Benton County: 11.1 %Black Hawk County: 11.6 %Boone County: 11.2 %Bremer County: 9.9 %Buchanan County: 11.1 %Buena Vista County: 13 %Butler County: 12.6 %Calhoun County: 12.3 %Carroll County: 12 %Cass County: 13.9 %Cedar County: 11.9 %Cerro Gordo County: 12.5 %Cherokee County: 13.7 %Chickasaw County: 12.6 %Clarke County: 14.2 %Clay County: 12.3 %Clayton County: 13.9 %Clinton County: 12.7 %Crawford County: 14.3 %Dallas County: 8.8 %Davis County: 12 %Decatur County: 12.4 %Delaware County: 12.5 %Des Moines County: 12.3 %Dickinson County: 12.1 %Dubuque County: 10.4 %Emmet County: 12.7 %Fayette County: 13.1 %Floyd County: 12.9 %Franklin County: 14.1 %Fremont County: 12.7 %Greene County: 13.1 %Grundy County: 11.1 %Guthrie County: 12.4 %Hamilton County: 12.1 %Hancock County: 12.6 %Hardin County: 12.9 %Harrison County: 12.5 %Henry County: 12.5 %Howard County: 12.4 %Humboldt County: 13.2 %Ida County: 12.4 %Iowa County: 11.7 %Jackson County: 12.7 %Jasper County: 11.9 %Jefferson County: 13.2 %Johnson County: 8.8 %Jones County: 11.9 %Keokuk County: 13.4 %Kossuth County: 13.1 %Lee County: 12.9 %Linn County: 11.2 %Louisa County: 12.8 %Lucas County: 13.9 %Lyon County: 11.8 %Madison County: 10.5 %Mahaska County: 11.7 %Marion County: 10.5 %Marshall County: 12.7 %Mills County: 11.3 %Mitchell County: 12.2 %Monona County: 13.1 %Monroe County: 11.7 %Montgomery County: 12.9 %Muscatine County: 12.3 %O'Brien County: 12.4 %Osceola County: 14 %Page County: 13.6 %Palo Alto County: 12.1 %Plymouth County: 11.2 %Pocahontas County: 13.3 %Polk County: 10.1 %Pottawattamie County: 11.7 %Poweshiek County: 11.4 %Ringgold County: 12.2 %Sac County: 12.5 %Scott County: 11 %Shelby County: 12.5 %Sioux County: 9.8 %Story County: 8.1 %Tama County: 13.6 %Taylor County: 12.9 %Union County: 12.1 %Van Buren County: 13.9 %Wapello County: 13.5 %Warren County: 9.7 %Washington County: 12 %Wayne County: 13.1 %Webster County: 11.8 %Winnebago County: 11.6 %Winneshiek County: 10.7 %Woodbury County: 12.1 %Worth County: 12.4 %Wright County: 13.9 %
  • Under 11
  • 11 to 12
  • 12 to 13
  • 13 and over
%, 2023. 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, 2023

Appanoose County: 15.4 %Appanoose County15.4Crawford County: 14.3 %Crawford County14.3Clarke County: 14.2 %Clarke County14.2Franklin County: 14.1 %Franklin County14.1Osceola County: 14 %Osceola County14Cass County: 13.9 %Cass County13.9Clayton County: 13.9 %Clayton County13.9Lucas County: 13.9 %Lucas County13.9Van Buren County: 13.9 %Van Buren County13.9Wright County: 13.9 %Wright County13.9Cherokee County: 13.7 %Cherokee County13.7Audubon County: 13.6 %Audubon County13.6Page County: 13.6 %Page County13.6Tama County: 13.6 %Tama County13.6Wapello County: 13.5 %Wapello County13.5Keokuk County: 13.4 %Keokuk County13.4Pocahontas County: 13.3 %Pocahontas County13.3Adams County: 13.2 %Adams County13.2Humboldt County: 13.2 %Humboldt County13.2Jefferson County: 13.2 %Jefferson County13.2Adair County: 13.1 %Adair County13.1Allamakee County: 13.1 %Allamakee County13.1Fayette County: 13.1 %Fayette County13.1Greene County: 13.1 %Greene County13.1Kossuth County: 13.1 %Kossuth County13.1Monona County: 13.1 %Monona County13.1Wayne County: 13.1 %Wayne County13.1Buena Vista County: 13 %Buena Vista County13Floyd County: 12.9 %Floyd County12.9Hardin County: 12.9 %Hardin County12.9Lee County: 12.9 %Lee County12.9Montgomery County: 12.9 %Montgomery County12.9Taylor County: 12.9 %Taylor County12.9Louisa County: 12.8 %Louisa County12.8Clinton County: 12.7 %Clinton County12.7Emmet County: 12.7 %Emmet County12.7Fremont County: 12.7 %Fremont County12.7Jackson County: 12.7 %Jackson County12.7Marshall County: 12.7 %Marshall County12.7Butler County: 12.6 %Butler County12.6Appanoose County: 15.4 %Appanoose County15.4Crawford County: 14.3 %Crawford County14.3Clarke County: 14.2 %Clarke County14.2Franklin County: 14.1 %Franklin County14.1Osceola County: 14 %Osceola County14Cass County: 13.9 %Cass County13.9Clayton County: 13.9 %Clayton County13.9Lucas County: 13.9 %Lucas County13.9Van Buren County: 13.9 %Van Buren County13.9Wright County: 13.9 %Wright County13.9Cherokee County: 13.7 %Cherokee County13.7Audubon County: 13.6 %Audubon County13.6Page County: 13.6 %Page County13.6Tama County: 13.6 %Tama County13.6Wapello County: 13.5 %Wapello County13.5Keokuk County: 13.4 %Keokuk County13.4Pocahontas County: 13.3 %Pocahontas County13.3Adams County: 13.2 %Adams County13.2Humboldt County: 13.2 %Humboldt County13.2Jefferson County: 13.2 %Jefferson County13.2Adair County: 13.1 %Adair County13.1Allamakee County: 13.1 %Allamakee County13.1Fayette County: 13.1 %Fayette County13.1Greene County: 13.1 %Greene County13.1Kossuth County: 13.1 %Kossuth County13.1Monona County: 13.1 %Monona County13.1Wayne County: 13.1 %Wayne County13.1Buena Vista County: 13 %Buena Vista County13Floyd County: 12.9 %Floyd County12.9Hardin County: 12.9 %Hardin County12.9Lee County: 12.9 %Lee County12.9Montgomery County: 12.9 %Montgomery County12.9Taylor County: 12.9 %Taylor County12.9Louisa County: 12.8 %Louisa County12.8Clinton County: 12.7 %Clinton County12.7Emmet County: 12.7 %Emmet County12.7Fremont County: 12.7 %Fremont County12.7Jackson County: 12.7 %Jackson County12.7Marshall County: 12.7 %Marshall County12.7Butler County: 12.6 %Butler County12.6
%. 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

RankCounties2023 (%)Change on 2022
1Appanoose County15.4+0.9 pts
2Crawford County14.3-0.2 pts
3Clarke County14.2+0.5 pts
4Franklin County14.1+0.8 pts
5Osceola County14+0.9 pts
6Cass County13.9+0.2 pts
6Clayton County13.9+0.6 pts
6Lucas County13.9-0.5 pts
6Van Buren County13.90 pts
6Wright County13.9-0.4 pts
11Cherokee County13.7+0.2 pts
12Audubon County13.6+0.3 pts
12Page County13.6+0.5 pts
12Tama County13.6-0.4 pts
15Wapello County13.5-0.4 pts
16Keokuk County13.4+0.3 pts
17Pocahontas County13.3+0.6 pts
18Adams County13.20 pts
18Humboldt County13.2-0.1 pts
18Jefferson County13.2-0.5 pts
21Adair County13.1+0.2 pts
21Allamakee County13.1-0.1 pts
21Fayette County13.1-0.3 pts
21Greene County13.1+0.1 pts
21Kossuth County13.10 pts
21Monona County13.1-0.4 pts
21Wayne County13.1-0.7 pts
28Buena Vista County13+0.6 pts
29Floyd County12.9+0.1 pts
29Hardin County12.90 pts
29Lee County12.9-0.6 pts
29Montgomery County12.9-0.6 pts
29Taylor County12.9-0.4 pts
34Louisa County12.8-1.6 pts
35Clinton County12.7+0.7 pts
35Emmet County12.7-0.2 pts
35Fremont County12.7+0.7 pts
35Jackson County12.7-0.4 pts
35Marshall County12.7+0.3 pts
40Butler County12.6-0.3 pts
40Chickasaw County12.6+0.5 pts
40Hancock County12.6+0.8 pts
43Cerro Gordo County12.5-0.3 pts
43Delaware County12.5+0.9 pts
43Harrison County12.5-0.3 pts
43Henry County12.5+0.5 pts
43Sac County12.5+0.4 pts
43Shelby County12.5-0.6 pts
49Decatur County12.4+1 pts
49Guthrie County12.4+0.7 pts
49Howard County12.4-0.2 pts
49Ida County12.4+0.1 pts
49O'Brien County12.4-0.9 pts
49Worth County12.40 pts
55Calhoun County12.3-0.2 pts
55Clay County12.3+0.6 pts
55Des Moines County12.3-0.5 pts
55Muscatine County12.30 pts
59Mitchell County12.2+0.1 pts
59Ringgold County12.2-1.2 pts
61Dickinson County12.1-1.1 pts
61Hamilton County12.10 pts
61Palo Alto County12.1-0.1 pts
61Union County12.1+0.3 pts
61Woodbury County12.1-0.3 pts
66Carroll County12-0.1 pts
66Davis County12-0.2 pts
66Washington County12+0.4 pts
69Cedar County11.9+0.4 pts
69Jasper County11.9+0.8 pts
69Jones County11.9-0.2 pts
72Lyon County11.8+1.1 pts
72Webster County11.8+0.2 pts
74Iowa County11.7+0.2 pts
74Mahaska County11.7+0.1 pts
74Monroe County11.7+0.4 pts
74Pottawattamie County11.7-1.1 pts
78Black Hawk County11.6+0.2 pts
78Winnebago County11.6+0.6 pts
80Poweshiek County11.4-0.1 pts
81Mills County11.3-0.9 pts
82Boone County11.2+0.5 pts
82Linn County11.2-0.1 pts
82Plymouth County11.2+0.1 pts
85Benton County11.1-1.2 pts
85Buchanan County11.1-0.6 pts
85Grundy County11.10 pts
88Scott County11-0.1 pts
89Winneshiek County10.7+0.6 pts
90Madison County10.5+0.1 pts
90Marion County10.5+0.3 pts
92Dubuque County10.4-0.9 pts
93Polk County10.1-0.4 pts
94Bremer County9.9-0.9 pts
95Sioux County9.8-0.4 pts
96Warren County9.7-1.3 pts
97Dallas County8.80 pts
97Johnson County8.8+0.4 pts
99Story County8.1+0.5 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 Iowa by diagnosed diabetes in adults, local model estimate, 2023) [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 Iowa by diagnosed diabetes in adults, local model estimate, 2023. Centers for Disease Control and Prevention, 4 Dec. 2025, https://www.cdc.gov/places/. Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/iowa-counties. 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 Iowa by diagnosed diabetes in adults, local model estimate, 2023. Dataset. Accessed October 12, 2026. https://www.cdc.gov/places/. Also distributed by Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/iowa-counties.

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 Iowa by diagnosed diabetes in adults, local model estimate, 2023 [Dataset]. Available at: https://www.cdc.gov/places/, via Invokely: https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/iowa-counties (Accessed: 12 October 2026).

BibTeX
@misc{centers_counties_in_iowa_by_2023,
  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 Iowa by diagnosed diabetes in adults, local model estimate, 2023}},
  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/iowa-counties. 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 Iowa by diagnosed diabetes in adults, local model estimate, 2023
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/iowa-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/adult-diabetes-rate-county-estimate/iowa-counties.
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 Iowa by diagnosed diabetes in adults, local model estimate using official data, and cite the source.
rank_places {"indicator":"adult_diabetes_rate_modelled","level":"province","within":"Iowa","limit":10}
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Questions

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

Appanoose County, with 15.4% in 2023, according to the Centers for Disease Control and Prevention.

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

Story County, with 8.1% in 2023.

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 Iowa: more rankings