Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in Iowa

Counties in Iowa by uninsured rate, under 65 (US model-based estimate)

Davis County had the highest uninsured rate, under 65 (US model-based estimate) of 99 counties in 2023, at 14.3%. Warren County had the lowest, at 3.6%. The median was 5.8% and the figure for Iowa was 5.9%. Source: the U.S. Census Bureau.

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Highest14.3Davis County
Lowest3.6Warren County
Median5.899 counties
Iowa5.9History

Map of counties, 2023

Adair County: 4.7 %Adams County: 6 %Allamakee County: 7.8 %Appanoose County: 7.1 %Audubon County: 6.2 %Benton County: 4.3 %Black Hawk County: 6.1 %Boone County: 4.2 %Bremer County: 4.1 %Buchanan County: 5.7 %Buena Vista County: 10.6 %Butler County: 5.7 %Calhoun County: 5.5 %Carroll County: 4.5 %Cass County: 6.7 %Cedar County: 4.8 %Cerro Gordo County: 4.7 %Cherokee County: 6 %Chickasaw County: 6.1 %Clarke County: 7.2 %Clay County: 5.4 %Clayton County: 7.8 %Clinton County: 5.5 %Crawford County: 9.7 %Dallas County: 3.8 %Davis County: 14.3 %Decatur County: 7.1 %Delaware County: 5.4 %Des Moines County: 5.6 %Dickinson County: 5.3 %Dubuque County: 4.3 %Emmet County: 8.1 %Fayette County: 5.8 %Floyd County: 5.5 %Franklin County: 7.1 %Fremont County: 5.2 %Greene County: 5.9 %Grundy County: 4.4 %Guthrie County: 6.2 %Hamilton County: 6.6 %Hancock County: 6.3 %Hardin County: 6.7 %Harrison County: 5.5 %Henry County: 6.2 %Howard County: 7.4 %Humboldt County: 6.2 %Ida County: 5.4 %Iowa County: 4.9 %Jackson County: 5.6 %Jasper County: 5.2 %Jefferson County: 8.2 %Johnson County: 6.1 %Jones County: 5.3 %Keokuk County: 5.5 %Kossuth County: 6.6 %Lee County: 5.5 %Linn County: 4.8 %Louisa County: 7.6 %Lucas County: 6 %Lyon County: 4.8 %Madison County: 4.8 %Mahaska County: 5.6 %Marion County: 4.1 %Marshall County: 8.1 %Mills County: 4.2 %Mitchell County: 7.2 %Monona County: 5.9 %Monroe County: 5.3 %Montgomery County: 5.8 %Muscatine County: 6.2 %O'Brien County: 6.9 %Osceola County: 7.9 %Page County: 5.3 %Palo Alto County: 5.5 %Plymouth County: 5.8 %Pocahontas County: 7.2 %Polk County: 6.7 %Pottawattamie County: 5.7 %Poweshiek County: 4.9 %Ringgold County: 5.8 %Sac County: 5.7 %Scott County: 5.2 %Shelby County: 5.6 %Sioux County: 6.4 %Story County: 5.2 %Tama County: 7.3 %Taylor County: 7.1 %Union County: 5.9 %Van Buren County: 9 %Wapello County: 7.5 %Warren County: 3.6 %Washington County: 8 %Wayne County: 8.2 %Webster County: 7.7 %Winnebago County: 5.3 %Winneshiek County: 4.7 %Woodbury County: 8.1 %Worth County: 4.5 %Wright County: 6.2 %
  • Under 4.8
  • 4.8 to 5.5
  • 5.5 to 5.8
  • 5.8 to 6.2
  • 6.2 to 7.4
  • 7.4 and over
%, 2023. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

Davis County: 14.3 %Davis County14.3Buena Vista County: 10.6 %Buena Vista County10.6Crawford County: 9.7 %Crawford County9.7Van Buren County: 9 %Van Buren County9Jefferson County: 8.2 %Jefferson County8.2Wayne County: 8.2 %Wayne County8.2Emmet County: 8.1 %Emmet County8.1Marshall County: 8.1 %Marshall County8.1Woodbury County: 8.1 %Woodbury County8.1Washington County: 8 %Washington County8Osceola County: 7.9 %Osceola County7.9Allamakee County: 7.8 %Allamakee County7.8Clayton County: 7.8 %Clayton County7.8Webster County: 7.7 %Webster County7.7Louisa County: 7.6 %Louisa County7.6Wapello County: 7.5 %Wapello County7.5Howard County: 7.4 %Howard County7.4Tama County: 7.3 %Tama County7.3Clarke County: 7.2 %Clarke County7.2Mitchell County: 7.2 %Mitchell County7.2Pocahontas County: 7.2 %Pocahontas County7.2Appanoose County: 7.1 %Appanoose County7.1Decatur County: 7.1 %Decatur County7.1Franklin County: 7.1 %Franklin County7.1Taylor County: 7.1 %Taylor County7.1O'Brien County: 6.9 %O'Brien County6.9Cass County: 6.7 %Cass County6.7Hardin County: 6.7 %Hardin County6.7Polk County: 6.7 %Polk County6.7Hamilton County: 6.6 %Hamilton County6.6Kossuth County: 6.6 %Kossuth County6.6Sioux County: 6.4 %Sioux County6.4Hancock County: 6.3 %Hancock County6.3Audubon County: 6.2 %Audubon County6.2Guthrie County: 6.2 %Guthrie County6.2Henry County: 6.2 %Henry County6.2Humboldt County: 6.2 %Humboldt County6.2Muscatine County: 6.2 %Muscatine County6.2Wright County: 6.2 %Wright County6.2Black Hawk County: 6.1 %Black Hawk County6.1Davis County: 14.3 %Davis County14.3Buena Vista County: 10.6 %Buena Vista County10.6Crawford County: 9.7 %Crawford County9.7Van Buren County: 9 %Van Buren County9Jefferson County: 8.2 %Jefferson County8.2Wayne County: 8.2 %Wayne County8.2Emmet County: 8.1 %Emmet County8.1Marshall County: 8.1 %Marshall County8.1Woodbury County: 8.1 %Woodbury County8.1Washington County: 8 %Washington County8Osceola County: 7.9 %Osceola County7.9Allamakee County: 7.8 %Allamakee County7.8Clayton County: 7.8 %Clayton County7.8Webster County: 7.7 %Webster County7.7Louisa County: 7.6 %Louisa County7.6Wapello County: 7.5 %Wapello County7.5Howard County: 7.4 %Howard County7.4Tama County: 7.3 %Tama County7.3Clarke County: 7.2 %Clarke County7.2Mitchell County: 7.2 %Mitchell County7.2Pocahontas County: 7.2 %Pocahontas County7.2Appanoose County: 7.1 %Appanoose County7.1Decatur County: 7.1 %Decatur County7.1Franklin County: 7.1 %Franklin County7.1Taylor County: 7.1 %Taylor County7.1O'Brien County: 6.9 %O'Brien County6.9Cass County: 6.7 %Cass County6.7Hardin County: 6.7 %Hardin County6.7Polk County: 6.7 %Polk County6.7Hamilton County: 6.6 %Hamilton County6.6Kossuth County: 6.6 %Kossuth County6.6Sioux County: 6.4 %Sioux County6.4Hancock County: 6.3 %Hancock County6.3Audubon County: 6.2 %Audubon County6.2Guthrie County: 6.2 %Guthrie County6.2Henry County: 6.2 %Henry County6.2Humboldt County: 6.2 %Humboldt County6.2Muscatine County: 6.2 %Muscatine County6.2Wright County: 6.2 %Wright County6.2Black Hawk County: 6.1 %Black Hawk County6.1
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Davis County14.3-0.1 pts
2Buena Vista County10.6+0.9 pts
3Crawford County9.7-0.1 pts
4Van Buren County9+0.7 pts
5Jefferson County8.2+0.4 pts
5Wayne County8.2+2.3 pts
7Emmet County8.1+0.2 pts
7Marshall County8.1+1.2 pts
7Woodbury County8.1+1 pts
10Washington County8+1 pts
11Osceola County7.9+0.7 pts
12Allamakee County7.8+0.1 pts
12Clayton County7.8+1.2 pts
14Webster County7.7+2 pts
15Louisa County7.6+0.7 pts
16Wapello County7.5+0.8 pts
17Howard County7.4+0.6 pts
18Tama County7.3+0.8 pts
19Clarke County7.2+0.5 pts
19Mitchell County7.2+0.6 pts
19Pocahontas County7.2-0.6 pts
22Appanoose County7.1+1.5 pts
22Decatur County7.1+1.3 pts
22Franklin County7.1-0.6 pts
22Taylor County7.1+0.4 pts
26O'Brien County6.9+1 pts
27Cass County6.7+0.1 pts
27Hardin County6.7+0.5 pts
27Polk County6.7+1.2 pts
30Hamilton County6.6+1.4 pts
30Kossuth County6.6+1.2 pts
32Sioux County6.4+0.4 pts
33Hancock County6.3+0.6 pts
34Audubon County6.2+0.6 pts
34Guthrie County6.2+0.2 pts
34Henry County6.2+1 pts
34Humboldt County6.2+0.6 pts
34Muscatine County6.2+0.8 pts
34Wright County6.2+0.8 pts
40Black Hawk County6.1+0.9 pts
40Chickasaw County6.1-0.3 pts
40Johnson County6.1+1.1 pts
43Adams County6+0.9 pts
43Cherokee County6+0.6 pts
43Lucas County6+0.6 pts
46Greene County5.9+0.1 pts
46Monona County5.9+0.3 pts
46Union County5.9+0.3 pts
49Fayette County5.8+0.2 pts
49Montgomery County5.8+0.2 pts
49Plymouth County5.8+1.2 pts
49Ringgold County5.8-0.5 pts
53Buchanan County5.7+0.3 pts
53Butler County5.7+0.9 pts
53Pottawattamie County5.70 pts
53Sac County5.70 pts
57Des Moines County5.6+0.6 pts
57Jackson County5.6+0.4 pts
57Mahaska County5.6+0.5 pts
57Shelby County5.6-0.4 pts
61Calhoun County5.5-0.1 pts
61Clinton County5.5+0.7 pts
61Floyd County5.5+0.4 pts
61Harrison County5.5-0.3 pts
61Keokuk County5.5+0.5 pts
61Lee County5.5+0.7 pts
61Palo Alto County5.5+0.4 pts
68Clay County5.4+0.5 pts
68Delaware County5.4+0.1 pts
68Ida County5.4-0.2 pts
71Dickinson County5.3-0.3 pts
71Jones County5.3+0.4 pts
71Monroe County5.3+0.5 pts
71Page County5.3-0.5 pts
71Winnebago County5.3-0.3 pts
76Fremont County5.2+0.5 pts
76Jasper County5.2+0.4 pts
76Scott County5.2-0.6 pts
76Story County5.2+0.6 pts
80Iowa County4.9+0.5 pts
80Poweshiek County4.9+0.4 pts
82Cedar County4.8+0.3 pts
82Linn County4.8+0.5 pts
82Lyon County4.8-1 pts
82Madison County4.8+0.2 pts
86Adair County4.7-0.3 pts
86Cerro Gordo County4.7-0.3 pts
86Winneshiek County4.7+0.5 pts
89Carroll County4.5-0.1 pts
89Worth County4.5-0.9 pts
91Grundy County4.4+0.1 pts
92Benton County4.3-0.2 pts
92Dubuque County4.3-0.3 pts
94Boone County4.2-0.4 pts
94Mills County4.20 pts
96Bremer County4.1+0.5 pts
96Marion County4.10 pts
98Dallas County3.80 pts
99Warren County3.6-0.2 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. People 65 and over are left out because nearly all of them have Medicare.

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

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Retrieved 2026-10-12.

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

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties (Counties in Iowa by uninsured rate, under 65 (US model-based estimate), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Iowa by uninsured rate, under 65 (US model-based estimate), 2023. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Iowa by uninsured rate, under 65 (US model-based estimate), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2023.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Iowa by uninsured rate, under 65 (US model-based estimate), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Iowa by uninsured rate, under 65 (US model-based estimate), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2023. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Iowa by uninsured rate, under 65 (US model-based estimate), 2023
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2023-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Davis County, with 14.3% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Warren County, with 3.6% in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Iowa: more rankings