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 2016, at 9.3%. Warren County had the lowest, at 3.3%. The median was 5.2% and the figure for Iowa was 5%. Source: the U.S. Census Bureau.

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Lowest3.3Warren County
Median5.299 counties
Iowa5History

Map of counties, 2016

Adair County: 4.5 %Adams County: 6 %Allamakee County: 7.2 %Appanoose County: 5.8 %Audubon County: 5.8 %Benton County: 4 %Black Hawk County: 5.3 %Boone County: 4.1 %Bremer County: 3.4 %Buchanan County: 4.8 %Buena Vista County: 9.3 %Butler County: 4.5 %Calhoun County: 5.2 %Carroll County: 3.8 %Cass County: 5.8 %Cedar County: 3.8 %Cerro Gordo County: 4.2 %Cherokee County: 5.7 %Chickasaw County: 5.5 %Clarke County: 5.6 %Clay County: 4.5 %Clayton County: 6.3 %Clinton County: 4.1 %Crawford County: 9.3 %Dallas County: 3.7 %Davis County: 8.6 %Decatur County: 6.6 %Delaware County: 5 %Des Moines County: 4.8 %Dickinson County: 4.1 %Dubuque County: 4.1 %Emmet County: 7 %Fayette County: 5.3 %Floyd County: 5.6 %Franklin County: 6.9 %Fremont County: 4.5 %Greene County: 5.2 %Grundy County: 3.5 %Guthrie County: 5.5 %Hamilton County: 5.2 %Hancock County: 4.9 %Hardin County: 5.2 %Harrison County: 5 %Henry County: 4.7 %Howard County: 5.7 %Humboldt County: 4.7 %Ida County: 4.7 %Iowa County: 4 %Jackson County: 5.2 %Jasper County: 3.9 %Jefferson County: 7.3 %Johnson County: 5.4 %Jones County: 4.7 %Keokuk County: 6.1 %Kossuth County: 4.4 %Lee County: 4.3 %Linn County: 3.6 %Louisa County: 7.9 %Lucas County: 5.3 %Lyon County: 5.5 %Madison County: 4.6 %Mahaska County: 4.4 %Marion County: 3.8 %Marshall County: 7.6 %Mills County: 4.1 %Mitchell County: 6.4 %Monona County: 5.5 %Monroe County: 5.4 %Montgomery County: 6 %Muscatine County: 5.7 %O'Brien County: 5 %Osceola County: 6.5 %Page County: 5.5 %Palo Alto County: 5 %Plymouth County: 4.8 %Pocahontas County: 6 %Polk County: 5.1 %Pottawattamie County: 5.1 %Poweshiek County: 5.2 %Ringgold County: 7.2 %Sac County: 5.3 %Scott County: 4.2 %Shelby County: 4.7 %Sioux County: 5.7 %Story County: 4.7 %Tama County: 6.4 %Taylor County: 6.5 %Union County: 4.9 %Van Buren County: 6.4 %Wapello County: 7.1 %Warren County: 3.3 %Washington County: 5.3 %Wayne County: 7.4 %Webster County: 5 %Winnebago County: 4.1 %Winneshiek County: 4.3 %Woodbury County: 7.2 %Worth County: 4.5 %Wright County: 6.4 %
  • Under 4.1
  • 4.1 to 4.7
  • 4.7 to 5.2
  • 5.2 to 5.6
  • 5.6 to 6.4
  • 6.4 and over
%, 2016. 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, 2016

Buena Vista County: 9.3 %Buena Vista County9.3Crawford County: 9.3 %Crawford County9.3Davis County: 8.6 %Davis County8.6Louisa County: 7.9 %Louisa County7.9Marshall County: 7.6 %Marshall County7.6Wayne County: 7.4 %Wayne County7.4Jefferson County: 7.3 %Jefferson County7.3Allamakee County: 7.2 %Allamakee County7.2Ringgold County: 7.2 %Ringgold County7.2Woodbury County: 7.2 %Woodbury County7.2Wapello County: 7.1 %Wapello County7.1Emmet County: 7 %Emmet County7Franklin County: 6.9 %Franklin County6.9Decatur County: 6.6 %Decatur County6.6Osceola County: 6.5 %Osceola County6.5Taylor County: 6.5 %Taylor County6.5Mitchell County: 6.4 %Mitchell County6.4Tama County: 6.4 %Tama County6.4Van Buren County: 6.4 %Van Buren County6.4Wright County: 6.4 %Wright County6.4Clayton County: 6.3 %Clayton County6.3Keokuk County: 6.1 %Keokuk County6.1Adams County: 6 %Adams County6Montgomery County: 6 %Montgomery County6Pocahontas County: 6 %Pocahontas County6Appanoose County: 5.8 %Appanoose County5.8Audubon County: 5.8 %Audubon County5.8Cass County: 5.8 %Cass County5.8Cherokee County: 5.7 %Cherokee County5.7Howard County: 5.7 %Howard County5.7Muscatine County: 5.7 %Muscatine County5.7Sioux County: 5.7 %Sioux County5.7Clarke County: 5.6 %Clarke County5.6Floyd County: 5.6 %Floyd County5.6Chickasaw County: 5.5 %Chickasaw County5.5Guthrie County: 5.5 %Guthrie County5.5Lyon County: 5.5 %Lyon County5.5Monona County: 5.5 %Monona County5.5Page County: 5.5 %Page County5.5Johnson County: 5.4 %Johnson County5.4Buena Vista County: 9.3 %Buena Vista County9.3Crawford County: 9.3 %Crawford County9.3Davis County: 8.6 %Davis County8.6Louisa County: 7.9 %Louisa County7.9Marshall County: 7.6 %Marshall County7.6Wayne County: 7.4 %Wayne County7.4Jefferson County: 7.3 %Jefferson County7.3Allamakee County: 7.2 %Allamakee County7.2Ringgold County: 7.2 %Ringgold County7.2Woodbury County: 7.2 %Woodbury County7.2Wapello County: 7.1 %Wapello County7.1Emmet County: 7 %Emmet County7Franklin County: 6.9 %Franklin County6.9Decatur County: 6.6 %Decatur County6.6Osceola County: 6.5 %Osceola County6.5Taylor County: 6.5 %Taylor County6.5Mitchell County: 6.4 %Mitchell County6.4Tama County: 6.4 %Tama County6.4Van Buren County: 6.4 %Van Buren County6.4Wright County: 6.4 %Wright County6.4Clayton County: 6.3 %Clayton County6.3Keokuk County: 6.1 %Keokuk County6.1Adams County: 6 %Adams County6Montgomery County: 6 %Montgomery County6Pocahontas County: 6 %Pocahontas County6Appanoose County: 5.8 %Appanoose County5.8Audubon County: 5.8 %Audubon County5.8Cass County: 5.8 %Cass County5.8Cherokee County: 5.7 %Cherokee County5.7Howard County: 5.7 %Howard County5.7Muscatine County: 5.7 %Muscatine County5.7Sioux County: 5.7 %Sioux County5.7Clarke County: 5.6 %Clarke County5.6Floyd County: 5.6 %Floyd County5.6Chickasaw County: 5.5 %Chickasaw County5.5Guthrie County: 5.5 %Guthrie County5.5Lyon County: 5.5 %Lyon County5.5Monona County: 5.5 %Monona County5.5Page County: 5.5 %Page County5.5Johnson County: 5.4 %Johnson County5.4
%. 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

RankCounties2016 (%)Change on 2015
1Buena Vista County9.3-1.8 pts
1Crawford County9.3-3 pts
3Davis County8.6-2.5 pts
4Louisa County7.9-0.3 pts
5Marshall County7.6-1.1 pts
6Wayne County7.4-0.8 pts
7Jefferson County7.3-0.2 pts
8Allamakee County7.2-0.7 pts
8Ringgold County7.2-1.3 pts
8Woodbury County7.2-1.1 pts
11Wapello County7.1-1.5 pts
12Emmet County7-1.6 pts
13Franklin County6.9-1.9 pts
14Decatur County6.6-1 pts
15Osceola County6.5-1.5 pts
15Taylor County6.5-2 pts
17Mitchell County6.4-1.1 pts
17Tama County6.4-1.8 pts
17Van Buren County6.4-1.5 pts
17Wright County6.4-1.1 pts
21Clayton County6.3-0.1 pts
22Keokuk County6.1-0.4 pts
23Adams County6-1.7 pts
23Montgomery County6-0.6 pts
23Pocahontas County6-0.1 pts
26Appanoose County5.8-1.2 pts
26Audubon County5.8-1.2 pts
26Cass County5.8-0.6 pts
29Cherokee County5.7-0.3 pts
29Howard County5.7-1.5 pts
29Muscatine County5.7-0.9 pts
29Sioux County5.7-1.9 pts
33Clarke County5.6-1.2 pts
33Floyd County5.6-0.8 pts
35Chickasaw County5.5-1.4 pts
35Guthrie County5.5-0.7 pts
35Lyon County5.5-0.3 pts
35Monona County5.5-1.2 pts
35Page County5.5-1.2 pts
40Johnson County5.4-1 pts
40Monroe County5.4-1.6 pts
42Black Hawk County5.3-1.1 pts
42Fayette County5.3-1 pts
42Lucas County5.3-1.8 pts
42Sac County5.3-1 pts
42Washington County5.3-1.3 pts
47Calhoun County5.2-1.2 pts
47Greene County5.2-0.8 pts
47Hamilton County5.2-0.3 pts
47Hardin County5.2-0.8 pts
47Jackson County5.2-1.5 pts
47Poweshiek County5.2-0.6 pts
53Polk County5.1-0.6 pts
53Pottawattamie County5.1-0.8 pts
55Delaware County5-0.6 pts
55Harrison County5-1.2 pts
55O'Brien County5-1.1 pts
55Palo Alto County5-1 pts
55Webster County5-0.8 pts
60Hancock County4.9-0.9 pts
60Union County4.9-1.5 pts
62Buchanan County4.8-0.6 pts
62Des Moines County4.8-0.6 pts
62Plymouth County4.8-0.2 pts
65Henry County4.7-0.9 pts
65Humboldt County4.7-1.2 pts
65Ida County4.7-1.4 pts
65Jones County4.7-0.8 pts
65Shelby County4.7-0.8 pts
65Story County4.7-0.3 pts
71Madison County4.6-0.7 pts
72Adair County4.5-1.1 pts
72Butler County4.5-0.6 pts
72Clay County4.5-0.9 pts
72Fremont County4.5-0.8 pts
72Worth County4.5-1.4 pts
77Kossuth County4.4-1 pts
77Mahaska County4.4-0.9 pts
79Lee County4.3-1.1 pts
79Winneshiek County4.3-0.1 pts
81Cerro Gordo County4.2-0.6 pts
81Scott County4.2-0.8 pts
83Boone County4.1-0.7 pts
83Clinton County4.1-0.6 pts
83Dickinson County4.1-0.9 pts
83Dubuque County4.1-0.6 pts
83Mills County4.1-0.7 pts
83Winnebago County4.1-1.3 pts
89Benton County4-1.2 pts
89Iowa County4-0.7 pts
91Jasper County3.9-1.1 pts
92Carroll County3.8-1.1 pts
92Cedar County3.8-1.1 pts
92Marion County3.8-0.2 pts
95Dallas County3.7-0.5 pts
96Linn County3.6-1 pts
97Grundy County3.5-0.8 pts
98Bremer County3.4-0.7 pts
99Warren County3.3-0.5 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-2016-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), 2016) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-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), 2016. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2016. 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), 2016. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2016.

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), 2016 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2016,
  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), 2016}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2016. 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-2016-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), 2016
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-2016-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/iowa-counties?period=2016.
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-2016-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 9.3% in 2016, according to the U.S. Census Bureau.

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

Warren County, with 3.3% in 2016.

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