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)

Buena Vista County had the highest uninsured rate, under 65 (US model-based estimate) of 99 counties in 2020, at 11.1%. Bremer County had the lowest, at 3.6%. The median was 5.9% and the figure for Iowa was 5.7%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest11.1Buena Vista County
Lowest3.6Bremer County
Median5.999 counties
Iowa5.7History

Map of counties, 2020

Adair County: 5.7 %Adams County: 6 %Allamakee County: 7.8 %Appanoose County: 6.1 %Audubon County: 7 %Benton County: 4.9 %Black Hawk County: 5.9 %Boone County: 5 %Bremer County: 3.6 %Buchanan County: 5.3 %Buena Vista County: 11.1 %Butler County: 5.5 %Calhoun County: 5.7 %Carroll County: 4.9 %Cass County: 7.5 %Cedar County: 4.7 %Cerro Gordo County: 5.3 %Cherokee County: 5.5 %Chickasaw County: 5.9 %Clarke County: 7.5 %Clay County: 6.9 %Clayton County: 6.7 %Clinton County: 5.6 %Crawford County: 10.8 %Dallas County: 4.1 %Davis County: 10.2 %Decatur County: 6.8 %Delaware County: 4.8 %Des Moines County: 4.7 %Dickinson County: 5.2 %Dubuque County: 4.7 %Emmet County: 7.6 %Fayette County: 5.6 %Floyd County: 6.1 %Franklin County: 8.1 %Fremont County: 6.1 %Greene County: 5.6 %Grundy County: 5.1 %Guthrie County: 6.2 %Hamilton County: 5.8 %Hancock County: 5.5 %Hardin County: 6.5 %Harrison County: 5.9 %Henry County: 5.5 %Howard County: 6 %Humboldt County: 6.6 %Ida County: 6.1 %Iowa County: 4.3 %Jackson County: 5.6 %Jasper County: 4.4 %Jefferson County: 7.7 %Johnson County: 5.9 %Jones County: 5.8 %Keokuk County: 5.7 %Kossuth County: 5.4 %Lee County: 4.9 %Linn County: 5 %Louisa County: 8.5 %Lucas County: 5.5 %Lyon County: 6.3 %Madison County: 5.9 %Mahaska County: 5.5 %Marion County: 4.1 %Marshall County: 8.8 %Mills County: 4.8 %Mitchell County: 6.9 %Monona County: 5.8 %Monroe County: 6.2 %Montgomery County: 6.3 %Muscatine County: 6 %O'Brien County: 5.8 %Osceola County: 7.2 %Page County: 5.9 %Palo Alto County: 5.9 %Plymouth County: 5.8 %Pocahontas County: 7.2 %Polk County: 5.6 %Pottawattamie County: 5.4 %Poweshiek County: 5.1 %Ringgold County: 6.7 %Sac County: 5.9 %Scott County: 5.6 %Shelby County: 5.7 %Sioux County: 6.6 %Story County: 5.6 %Tama County: 8.3 %Taylor County: 7.7 %Union County: 6.2 %Van Buren County: 7.5 %Wapello County: 7.5 %Warren County: 4.2 %Washington County: 7.6 %Wayne County: 7 %Webster County: 6 %Winnebago County: 5.2 %Winneshiek County: 4.3 %Woodbury County: 7.8 %Worth County: 6.2 %Wright County: 6.7 %
  • Under 5
  • 5 to 5.6
  • 5.6 to 5.9
  • 5.9 to 6.2
  • 6.2 to 7.4
  • 7.4 and over
%, 2020. 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, 2020

Buena Vista County: 11.1 %Buena Vista County11.1Crawford County: 10.8 %Crawford County10.8Davis County: 10.2 %Davis County10.2Marshall County: 8.8 %Marshall County8.8Louisa County: 8.5 %Louisa County8.5Tama County: 8.3 %Tama County8.3Franklin County: 8.1 %Franklin County8.1Allamakee County: 7.8 %Allamakee County7.8Woodbury County: 7.8 %Woodbury County7.8Jefferson County: 7.7 %Jefferson County7.7Taylor County: 7.7 %Taylor County7.7Emmet County: 7.6 %Emmet County7.6Washington County: 7.6 %Washington County7.6Cass County: 7.5 %Cass County7.5Clarke County: 7.5 %Clarke County7.5Van Buren County: 7.5 %Van Buren County7.5Wapello County: 7.5 %Wapello County7.5Osceola County: 7.2 %Osceola County7.2Pocahontas County: 7.2 %Pocahontas County7.2Audubon County: 7 %Audubon County7Wayne County: 7 %Wayne County7Clay County: 6.9 %Clay County6.9Mitchell County: 6.9 %Mitchell County6.9Decatur County: 6.8 %Decatur County6.8Clayton County: 6.7 %Clayton County6.7Ringgold County: 6.7 %Ringgold County6.7Wright County: 6.7 %Wright County6.7Humboldt County: 6.6 %Humboldt County6.6Sioux County: 6.6 %Sioux County6.6Hardin County: 6.5 %Hardin County6.5Lyon County: 6.3 %Lyon County6.3Montgomery County: 6.3 %Montgomery County6.3Guthrie County: 6.2 %Guthrie County6.2Monroe County: 6.2 %Monroe County6.2Union County: 6.2 %Union County6.2Worth County: 6.2 %Worth County6.2Appanoose County: 6.1 %Appanoose County6.1Floyd County: 6.1 %Floyd County6.1Fremont County: 6.1 %Fremont County6.1Ida County: 6.1 %Ida County6.1Buena Vista County: 11.1 %Buena Vista County11.1Crawford County: 10.8 %Crawford County10.8Davis County: 10.2 %Davis County10.2Marshall County: 8.8 %Marshall County8.8Louisa County: 8.5 %Louisa County8.5Tama County: 8.3 %Tama County8.3Franklin County: 8.1 %Franklin County8.1Allamakee County: 7.8 %Allamakee County7.8Woodbury County: 7.8 %Woodbury County7.8Jefferson County: 7.7 %Jefferson County7.7Taylor County: 7.7 %Taylor County7.7Emmet County: 7.6 %Emmet County7.6Washington County: 7.6 %Washington County7.6Cass County: 7.5 %Cass County7.5Clarke County: 7.5 %Clarke County7.5Van Buren County: 7.5 %Van Buren County7.5Wapello County: 7.5 %Wapello County7.5Osceola County: 7.2 %Osceola County7.2Pocahontas County: 7.2 %Pocahontas County7.2Audubon County: 7 %Audubon County7Wayne County: 7 %Wayne County7Clay County: 6.9 %Clay County6.9Mitchell County: 6.9 %Mitchell County6.9Decatur County: 6.8 %Decatur County6.8Clayton County: 6.7 %Clayton County6.7Ringgold County: 6.7 %Ringgold County6.7Wright County: 6.7 %Wright County6.7Humboldt County: 6.6 %Humboldt County6.6Sioux County: 6.6 %Sioux County6.6Hardin County: 6.5 %Hardin County6.5Lyon County: 6.3 %Lyon County6.3Montgomery County: 6.3 %Montgomery County6.3Guthrie County: 6.2 %Guthrie County6.2Monroe County: 6.2 %Monroe County6.2Union County: 6.2 %Union County6.2Worth County: 6.2 %Worth County6.2Appanoose County: 6.1 %Appanoose County6.1Floyd County: 6.1 %Floyd County6.1Fremont County: 6.1 %Fremont County6.1Ida County: 6.1 %Ida 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

RankCounties2020 (%)Change on 2019
1Buena Vista County11.1+0.9 pts
2Crawford County10.8-0.7 pts
3Davis County10.20 pts
4Marshall County8.8+1.2 pts
5Louisa County8.5-0.4 pts
6Tama County8.3-0.1 pts
7Franklin County8.1+1 pts
8Allamakee County7.8-0.9 pts
8Woodbury County7.8+0.2 pts
10Jefferson County7.7-1.4 pts
10Taylor County7.7-0.6 pts
12Emmet County7.6+0.5 pts
12Washington County7.6+1.1 pts
14Cass County7.5+0.2 pts
14Clarke County7.5+0.3 pts
14Van Buren County7.5-0.1 pts
14Wapello County7.5-0.6 pts
18Osceola County7.2-0.4 pts
18Pocahontas County7.2+0.2 pts
20Audubon County7+0.1 pts
20Wayne County7-0.8 pts
22Clay County6.9+1 pts
22Mitchell County6.9-0.7 pts
24Decatur County6.8-0.3 pts
25Clayton County6.7-0.6 pts
25Ringgold County6.7-0.5 pts
25Wright County6.70 pts
28Humboldt County6.6+0.9 pts
28Sioux County6.6+0.1 pts
30Hardin County6.5+0.6 pts
31Lyon County6.3-0.2 pts
31Montgomery County6.3+0.2 pts
33Guthrie County6.2-0.2 pts
33Monroe County6.2+0.3 pts
33Union County6.2-0.1 pts
33Worth County6.2+1 pts
37Appanoose County6.1-0.2 pts
37Floyd County6.1-0.2 pts
37Fremont County6.1+0.9 pts
37Ida County6.1+0.9 pts
41Adams County60 pts
41Howard County6-0.1 pts
41Muscatine County6-0.1 pts
41Webster County6-0.5 pts
45Black Hawk County5.9+0.2 pts
45Chickasaw County5.9-0.8 pts
45Harrison County5.9+0.7 pts
45Johnson County5.90 pts
45Madison County5.9+1 pts
45Page County5.90 pts
45Palo Alto County5.9+0.2 pts
45Sac County5.9+0.3 pts
53Hamilton County5.8+0.4 pts
53Jones County5.8+0.3 pts
53Monona County5.8-0.1 pts
53O'Brien County5.8-0.4 pts
53Plymouth County5.8+0.5 pts
58Adair County5.7+0.6 pts
58Calhoun County5.7+0.5 pts
58Keokuk County5.7-0.4 pts
58Shelby County5.7+0.1 pts
62Clinton County5.6+0.4 pts
62Fayette County5.6-0.1 pts
62Greene County5.6+0.5 pts
62Jackson County5.6+0.2 pts
62Polk County5.6-0.2 pts
62Scott County5.6+0.1 pts
62Story County5.6-0.8 pts
69Butler County5.5+0.2 pts
69Cherokee County5.5+0.1 pts
69Hancock County5.5+0.3 pts
69Henry County5.5+0.3 pts
69Lucas County5.5-0.1 pts
69Mahaska County5.50 pts
75Kossuth County5.4+0.6 pts
75Pottawattamie County5.4-0.6 pts
77Buchanan County5.3+0.5 pts
77Cerro Gordo County5.3+0.5 pts
79Dickinson County5.2+0.6 pts
79Winnebago County5.2+0.2 pts
81Grundy County5.1+1 pts
81Poweshiek County5.1-0.1 pts
83Boone County5+0.5 pts
83Linn County5+0.2 pts
85Benton County4.9+0.4 pts
85Carroll County4.9+0.4 pts
85Lee County4.9-0.4 pts
88Delaware County4.8-0.7 pts
88Mills County4.80 pts
90Cedar County4.7+0.5 pts
90Des Moines County4.7-0.4 pts
90Dubuque County4.7-0.2 pts
93Jasper County4.40 pts
94Iowa County4.3+0.2 pts
94Winneshiek County4.3-0.5 pts
96Warren County4.2+0.4 pts
97Dallas County4.1+0.2 pts
97Marion County4.1-0.1 pts
99Bremer County3.6-0.1 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-2020-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), 2020) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-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), 2020. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2020. 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), 2020. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2020.

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), 2020 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2020,
  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), 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2020. 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-2020-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), 2020
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-2020-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2020.
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-2020-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)?

Buena Vista County, with 11.1% in 2020, according to the U.S. Census Bureau.

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

Bremer County, with 3.6% in 2020.

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