Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate)

Davis County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 99 counties in 2014, at 15.5%. Grundy County had the lowest, at 5.9%. The median was 9.1% and the figure for Iowa was 8.9%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest15.5Davis County
Lowest5.9Grundy County
Median9.199 counties
Iowa8.9History

Map of counties, 2014

Adair County: 9.2 %Adams County: 11.8 %Allamakee County: 12.3 %Appanoose County: 10.9 %Audubon County: 9.6 %Benton County: 7.3 %Black Hawk County: 9.2 %Boone County: 7.9 %Bremer County: 6.4 %Buchanan County: 8.5 %Buena Vista County: 15.3 %Butler County: 7.7 %Calhoun County: 8.7 %Carroll County: 7.4 %Cass County: 9.8 %Cedar County: 6.8 %Cerro Gordo County: 8.2 %Cherokee County: 8.6 %Chickasaw County: 10.2 %Clarke County: 10.9 %Clay County: 7.8 %Clayton County: 9.7 %Clinton County: 7.9 %Crawford County: 14.5 %Dallas County: 6.6 %Davis County: 15.5 %Decatur County: 12.2 %Delaware County: 8.1 %Des Moines County: 8.7 %Dickinson County: 7.5 %Dubuque County: 7.5 %Emmet County: 12 %Fayette County: 9.1 %Floyd County: 9.5 %Franklin County: 13 %Fremont County: 8 %Greene County: 9.6 %Grundy County: 5.9 %Guthrie County: 8.9 %Hamilton County: 9.5 %Hancock County: 8.4 %Hardin County: 8.5 %Harrison County: 9 %Henry County: 9.6 %Howard County: 11 %Humboldt County: 8.5 %Ida County: 8.3 %Iowa County: 7.1 %Jackson County: 9.6 %Jasper County: 8 %Jefferson County: 10.8 %Johnson County: 7.8 %Jones County: 8.5 %Keokuk County: 10.5 %Kossuth County: 7.4 %Lee County: 8.9 %Linn County: 6.7 %Louisa County: 11.2 %Lucas County: 10.9 %Lyon County: 8.8 %Madison County: 7.8 %Mahaska County: 8.5 %Marion County: 6.8 %Marshall County: 12.1 %Mills County: 7.5 %Mitchell County: 9.5 %Monona County: 10 %Monroe County: 13.2 %Montgomery County: 9.4 %Muscatine County: 9.8 %O'Brien County: 9.5 %Osceola County: 11.4 %Page County: 9.4 %Palo Alto County: 8.3 %Plymouth County: 7.1 %Pocahontas County: 8.4 %Polk County: 8.6 %Pottawattamie County: 9.9 %Poweshiek County: 7.7 %Ringgold County: 12.3 %Sac County: 9.2 %Scott County: 9.2 %Shelby County: 8.1 %Sioux County: 10.8 %Story County: 8.4 %Tama County: 10.7 %Taylor County: 11.6 %Union County: 10.2 %Van Buren County: 12.1 %Wapello County: 12.2 %Warren County: 6.1 %Washington County: 10 %Wayne County: 12.9 %Webster County: 9 %Winnebago County: 8.1 %Winneshiek County: 7.4 %Woodbury County: 14.4 %Worth County: 8.1 %Wright County: 10.6 %
  • Under 7.7
  • 7.7 to 8.4
  • 8.4 to 9.1
  • 9.1 to 9.8
  • 9.8 to 11
  • 11 and over
%, 2014. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2014

Davis County: 15.5 %Davis County15.5Buena Vista County: 15.3 %Buena Vista County15.3Crawford County: 14.5 %Crawford County14.5Woodbury County: 14.4 %Woodbury County14.4Monroe County: 13.2 %Monroe County13.2Franklin County: 13 %Franklin County13Wayne County: 12.9 %Wayne County12.9Allamakee County: 12.3 %Allamakee County12.3Ringgold County: 12.3 %Ringgold County12.3Decatur County: 12.2 %Decatur County12.2Wapello County: 12.2 %Wapello County12.2Marshall County: 12.1 %Marshall County12.1Van Buren County: 12.1 %Van Buren County12.1Emmet County: 12 %Emmet County12Adams County: 11.8 %Adams County11.8Taylor County: 11.6 %Taylor County11.6Osceola County: 11.4 %Osceola County11.4Louisa County: 11.2 %Louisa County11.2Howard County: 11 %Howard County11Appanoose County: 10.9 %Appanoose County10.9Clarke County: 10.9 %Clarke County10.9Lucas County: 10.9 %Lucas County10.9Jefferson County: 10.8 %Jefferson County10.8Sioux County: 10.8 %Sioux County10.8Tama County: 10.7 %Tama County10.7Wright County: 10.6 %Wright County10.6Keokuk County: 10.5 %Keokuk County10.5Chickasaw County: 10.2 %Chickasaw County10.2Union County: 10.2 %Union County10.2Monona County: 10 %Monona County10Washington County: 10 %Washington County10Pottawattamie County: 9.9 %Pottawattamie County9.9Cass County: 9.8 %Cass County9.8Muscatine County: 9.8 %Muscatine County9.8Clayton County: 9.7 %Clayton County9.7Audubon County: 9.6 %Audubon County9.6Greene County: 9.6 %Greene County9.6Henry County: 9.6 %Henry County9.6Jackson County: 9.6 %Jackson County9.6Floyd County: 9.5 %Floyd County9.5Davis County: 15.5 %Davis County15.5Buena Vista County: 15.3 %Buena Vista County15.3Crawford County: 14.5 %Crawford County14.5Woodbury County: 14.4 %Woodbury County14.4Monroe County: 13.2 %Monroe County13.2Franklin County: 13 %Franklin County13Wayne County: 12.9 %Wayne County12.9Allamakee County: 12.3 %Allamakee County12.3Ringgold County: 12.3 %Ringgold County12.3Decatur County: 12.2 %Decatur County12.2Wapello County: 12.2 %Wapello County12.2Marshall County: 12.1 %Marshall County12.1Van Buren County: 12.1 %Van Buren County12.1Emmet County: 12 %Emmet County12Adams County: 11.8 %Adams County11.8Taylor County: 11.6 %Taylor County11.6Osceola County: 11.4 %Osceola County11.4Louisa County: 11.2 %Louisa County11.2Howard County: 11 %Howard County11Appanoose County: 10.9 %Appanoose County10.9Clarke County: 10.9 %Clarke County10.9Lucas County: 10.9 %Lucas County10.9Jefferson County: 10.8 %Jefferson County10.8Sioux County: 10.8 %Sioux County10.8Tama County: 10.7 %Tama County10.7Wright County: 10.6 %Wright County10.6Keokuk County: 10.5 %Keokuk County10.5Chickasaw County: 10.2 %Chickasaw County10.2Union County: 10.2 %Union County10.2Monona County: 10 %Monona County10Washington County: 10 %Washington County10Pottawattamie County: 9.9 %Pottawattamie County9.9Cass County: 9.8 %Cass County9.8Muscatine County: 9.8 %Muscatine County9.8Clayton County: 9.7 %Clayton County9.7Audubon County: 9.6 %Audubon County9.6Greene County: 9.6 %Greene County9.6Henry County: 9.6 %Henry County9.6Jackson County: 9.6 %Jackson County9.6Floyd County: 9.5 %Floyd County9.5
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2014 (%)Change on 2013
1Davis County15.5-6.3 pts
2Buena Vista County15.3-4.5 pts
3Crawford County14.5-5.8 pts
4Woodbury County14.4-2.4 pts
5Monroe County13.2-3.4 pts
6Franklin County13-3.4 pts
7Wayne County12.9-4.3 pts
8Allamakee County12.3-5.4 pts
8Ringgold County12.3-4.1 pts
10Decatur County12.2-4.1 pts
10Wapello County12.2-2.8 pts
12Marshall County12.1-3.2 pts
12Van Buren County12.1-3.7 pts
14Emmet County12-4.7 pts
15Adams County11.8-3.1 pts
16Taylor County11.6-5.1 pts
17Osceola County11.4-3 pts
18Louisa County11.2-3.7 pts
19Howard County11-3.1 pts
20Appanoose County10.9-3.5 pts
20Clarke County10.9-3.6 pts
20Lucas County10.9-4.2 pts
23Jefferson County10.8-3.8 pts
23Sioux County10.8-3.6 pts
25Tama County10.7-5 pts
26Wright County10.6-3.8 pts
27Keokuk County10.5-2.7 pts
28Chickasaw County10.2-2.6 pts
28Union County10.2-2.6 pts
30Monona County10-3.5 pts
30Washington County10-3.1 pts
32Pottawattamie County9.9-3.3 pts
33Cass County9.8-2.6 pts
33Muscatine County9.8-2.9 pts
35Clayton County9.7-3.9 pts
36Audubon County9.6-3.9 pts
36Greene County9.6-2.6 pts
36Henry County9.6-2.2 pts
36Jackson County9.6-3.8 pts
40Floyd County9.5-2.2 pts
40Hamilton County9.5-4.3 pts
40Mitchell County9.5-3.1 pts
40O'Brien County9.5-2.4 pts
44Montgomery County9.4-3.8 pts
44Page County9.4-3 pts
46Adair County9.2-2.2 pts
46Black Hawk County9.2-2.8 pts
46Sac County9.2-3.4 pts
46Scott County9.2-2.2 pts
50Fayette County9.1-3.6 pts
51Harrison County9-2.3 pts
51Webster County9-3 pts
53Guthrie County8.9-2.9 pts
53Lee County8.9-3.3 pts
55Lyon County8.8-3 pts
56Calhoun County8.7-2.8 pts
56Des Moines County8.7-3.2 pts
58Cherokee County8.6-2.7 pts
58Polk County8.6-2.9 pts
60Buchanan County8.5-3.2 pts
60Hardin County8.5-3.1 pts
60Humboldt County8.5-2.8 pts
60Jones County8.5-2.4 pts
60Mahaska County8.5-3 pts
65Hancock County8.4-3 pts
65Pocahontas County8.4-2.9 pts
65Story County8.4-1.7 pts
68Ida County8.3-3.3 pts
68Palo Alto County8.3-2.7 pts
70Cerro Gordo County8.2-3.1 pts
71Delaware County8.1-4.6 pts
71Shelby County8.1-2.4 pts
71Winnebago County8.1-2.8 pts
71Worth County8.1-3 pts
75Fremont County8-3.4 pts
75Jasper County8-2.4 pts
77Boone County7.9-2.9 pts
77Clinton County7.9-1.5 pts
79Clay County7.8-3.7 pts
79Johnson County7.8-3.4 pts
79Madison County7.8-2.8 pts
82Butler County7.7-3.3 pts
82Poweshiek County7.7-2.5 pts
84Dickinson County7.5-2.9 pts
84Dubuque County7.5-2.3 pts
84Mills County7.5-2.4 pts
87Carroll County7.4-2.3 pts
87Kossuth County7.4-3.4 pts
87Winneshiek County7.4-3.3 pts
90Benton County7.3-2.4 pts
91Iowa County7.1-1.7 pts
91Plymouth County7.1-3.1 pts
93Cedar County6.8-2.7 pts
93Marion County6.8-2.4 pts
95Linn County6.7-2.7 pts
96Dallas County6.6-2 pts
97Bremer County6.4-1.6 pts
98Warren County6.1-2.5 pts
99Grundy County5.9-3.8 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate), 2014) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate), 2014. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2014. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate), 2014. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2014.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate), 2014 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2014,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate), 2014}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2014. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Iowa by uninsured rate, ages 18 to 64 (US model-based estimate), 2014
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-2014-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2014.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Davis County, with 15.5% in 2014, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Grundy County, with 5.9% in 2014.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Iowa: more rankings