Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Iowa

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 2013, at 21.8%. Bremer County had the lowest, at 8%. The median was 11.9% and the figure for Iowa was 11.8%. Source: the U.S. Census Bureau.

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Highest21.8Davis County
Lowest8Bremer County
Median11.999 counties
Iowa11.8History

Map of counties, 2013

Adair County: 11.4 %Adams County: 14.9 %Allamakee County: 17.7 %Appanoose County: 14.4 %Audubon County: 13.5 %Benton County: 9.7 %Black Hawk County: 12 %Boone County: 10.8 %Bremer County: 8 %Buchanan County: 11.7 %Buena Vista County: 19.8 %Butler County: 11 %Calhoun County: 11.5 %Carroll County: 9.7 %Cass County: 12.4 %Cedar County: 9.5 %Cerro Gordo County: 11.3 %Cherokee County: 11.3 %Chickasaw County: 12.8 %Clarke County: 14.5 %Clay County: 11.5 %Clayton County: 13.6 %Clinton County: 9.4 %Crawford County: 20.3 %Dallas County: 8.6 %Davis County: 21.8 %Decatur County: 16.3 %Delaware County: 12.7 %Des Moines County: 11.9 %Dickinson County: 10.4 %Dubuque County: 9.8 %Emmet County: 16.7 %Fayette County: 12.7 %Floyd County: 11.7 %Franklin County: 16.4 %Fremont County: 11.4 %Greene County: 12.2 %Grundy County: 9.7 %Guthrie County: 11.8 %Hamilton County: 13.8 %Hancock County: 11.4 %Hardin County: 11.6 %Harrison County: 11.3 %Henry County: 11.8 %Howard County: 14.1 %Humboldt County: 11.3 %Ida County: 11.6 %Iowa County: 8.8 %Jackson County: 13.4 %Jasper County: 10.4 %Jefferson County: 14.6 %Johnson County: 11.2 %Jones County: 10.9 %Keokuk County: 13.2 %Kossuth County: 10.8 %Lee County: 12.2 %Linn County: 9.4 %Louisa County: 14.9 %Lucas County: 15.1 %Lyon County: 11.8 %Madison County: 10.6 %Mahaska County: 11.5 %Marion County: 9.2 %Marshall County: 15.3 %Mills County: 9.9 %Mitchell County: 12.6 %Monona County: 13.5 %Monroe County: 16.6 %Montgomery County: 13.2 %Muscatine County: 12.7 %O'Brien County: 11.9 %Osceola County: 14.4 %Page County: 12.4 %Palo Alto County: 11 %Plymouth County: 10.2 %Pocahontas County: 11.3 %Polk County: 11.5 %Pottawattamie County: 13.2 %Poweshiek County: 10.2 %Ringgold County: 16.4 %Sac County: 12.6 %Scott County: 11.4 %Shelby County: 10.5 %Sioux County: 14.4 %Story County: 10.1 %Tama County: 15.7 %Taylor County: 16.7 %Union County: 12.8 %Van Buren County: 15.8 %Wapello County: 15 %Warren County: 8.6 %Washington County: 13.1 %Wayne County: 17.2 %Webster County: 12 %Winnebago County: 10.9 %Winneshiek County: 10.7 %Woodbury County: 16.8 %Worth County: 11.1 %Wright County: 14.4 %
  • Under 10
  • 10 to 11
  • 11 to 12
  • 12 to 13
  • 13 to 15
  • 15 and over
%, 2013. 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, 2013

Davis County: 21.8 %Davis County21.8Crawford County: 20.3 %Crawford County20.3Buena Vista County: 19.8 %Buena Vista County19.8Allamakee County: 17.7 %Allamakee County17.7Wayne County: 17.2 %Wayne County17.2Woodbury County: 16.8 %Woodbury County16.8Emmet County: 16.7 %Emmet County16.7Taylor County: 16.7 %Taylor County16.7Monroe County: 16.6 %Monroe County16.6Franklin County: 16.4 %Franklin County16.4Ringgold County: 16.4 %Ringgold County16.4Decatur County: 16.3 %Decatur County16.3Van Buren County: 15.8 %Van Buren County15.8Tama County: 15.7 %Tama County15.7Marshall County: 15.3 %Marshall County15.3Lucas County: 15.1 %Lucas County15.1Wapello County: 15 %Wapello County15Adams County: 14.9 %Adams County14.9Louisa County: 14.9 %Louisa County14.9Jefferson County: 14.6 %Jefferson County14.6Clarke County: 14.5 %Clarke County14.5Appanoose County: 14.4 %Appanoose County14.4Osceola County: 14.4 %Osceola County14.4Sioux County: 14.4 %Sioux County14.4Wright County: 14.4 %Wright County14.4Howard County: 14.1 %Howard County14.1Hamilton County: 13.8 %Hamilton County13.8Clayton County: 13.6 %Clayton County13.6Audubon County: 13.5 %Audubon County13.5Monona County: 13.5 %Monona County13.5Jackson County: 13.4 %Jackson County13.4Keokuk County: 13.2 %Keokuk County13.2Montgomery County: 13.2 %Montgomery County13.2Pottawattamie County: 13.2 %Pottawattamie County13.2Washington County: 13.1 %Washington County13.1Chickasaw County: 12.8 %Chickasaw County12.8Union County: 12.8 %Union County12.8Delaware County: 12.7 %Delaware County12.7Fayette County: 12.7 %Fayette County12.7Muscatine County: 12.7 %Muscatine County12.7Davis County: 21.8 %Davis County21.8Crawford County: 20.3 %Crawford County20.3Buena Vista County: 19.8 %Buena Vista County19.8Allamakee County: 17.7 %Allamakee County17.7Wayne County: 17.2 %Wayne County17.2Woodbury County: 16.8 %Woodbury County16.8Emmet County: 16.7 %Emmet County16.7Taylor County: 16.7 %Taylor County16.7Monroe County: 16.6 %Monroe County16.6Franklin County: 16.4 %Franklin County16.4Ringgold County: 16.4 %Ringgold County16.4Decatur County: 16.3 %Decatur County16.3Van Buren County: 15.8 %Van Buren County15.8Tama County: 15.7 %Tama County15.7Marshall County: 15.3 %Marshall County15.3Lucas County: 15.1 %Lucas County15.1Wapello County: 15 %Wapello County15Adams County: 14.9 %Adams County14.9Louisa County: 14.9 %Louisa County14.9Jefferson County: 14.6 %Jefferson County14.6Clarke County: 14.5 %Clarke County14.5Appanoose County: 14.4 %Appanoose County14.4Osceola County: 14.4 %Osceola County14.4Sioux County: 14.4 %Sioux County14.4Wright County: 14.4 %Wright County14.4Howard County: 14.1 %Howard County14.1Hamilton County: 13.8 %Hamilton County13.8Clayton County: 13.6 %Clayton County13.6Audubon County: 13.5 %Audubon County13.5Monona County: 13.5 %Monona County13.5Jackson County: 13.4 %Jackson County13.4Keokuk County: 13.2 %Keokuk County13.2Montgomery County: 13.2 %Montgomery County13.2Pottawattamie County: 13.2 %Pottawattamie County13.2Washington County: 13.1 %Washington County13.1Chickasaw County: 12.8 %Chickasaw County12.8Union County: 12.8 %Union County12.8Delaware County: 12.7 %Delaware County12.7Fayette County: 12.7 %Fayette County12.7Muscatine County: 12.7 %Muscatine County12.7
%. 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

RankCounties2013 (%)Change on 2012
1Davis County21.8+0.7 pts
2Crawford County20.3-0.6 pts
3Buena Vista County19.8-1.4 pts
4Allamakee County17.7+0.7 pts
5Wayne County17.2+1.4 pts
6Woodbury County16.8-0.4 pts
7Emmet County16.7+1.1 pts
7Taylor County16.7+0.6 pts
9Monroe County16.6+1.5 pts
10Franklin County16.4-0.7 pts
10Ringgold County16.4-1 pts
12Decatur County16.3-0.2 pts
13Van Buren County15.8-0.5 pts
14Tama County15.7-0.6 pts
15Marshall County15.3+0.5 pts
16Lucas County15.1-0.7 pts
17Wapello County15+0.1 pts
18Adams County14.9+0.2 pts
18Louisa County14.9-1.7 pts
20Jefferson County14.6-0.4 pts
21Clarke County14.5-2.6 pts
22Appanoose County14.4-0.2 pts
22Osceola County14.40 pts
22Sioux County14.4-0.6 pts
22Wright County14.4-0.9 pts
26Howard County14.1-0.5 pts
27Hamilton County13.8+1.2 pts
28Clayton County13.6-0.1 pts
29Audubon County13.5-1.2 pts
29Monona County13.5-0.6 pts
31Jackson County13.40 pts
32Keokuk County13.2-0.1 pts
32Montgomery County13.2-0.4 pts
32Pottawattamie County13.2-0.5 pts
35Washington County13.1-0.9 pts
36Chickasaw County12.8-0.5 pts
36Union County12.8-1.1 pts
38Delaware County12.7+0.9 pts
38Fayette County12.7-0.6 pts
38Muscatine County12.7-1.7 pts
41Mitchell County12.6+0.2 pts
41Sac County12.6-0.9 pts
43Cass County12.4-0.1 pts
43Page County12.4-0.1 pts
45Greene County12.2-0.6 pts
45Lee County12.2-0.1 pts
47Black Hawk County12-0.5 pts
47Webster County12-1.5 pts
49Des Moines County11.9+0.5 pts
49O'Brien County11.9-1.1 pts
51Guthrie County11.8-0.4 pts
51Henry County11.8-2.1 pts
51Lyon County11.8-2 pts
54Buchanan County11.7-0.2 pts
54Floyd County11.7-1.1 pts
56Hardin County11.6-0.9 pts
56Ida County11.6-0.4 pts
58Calhoun County11.5-0.6 pts
58Clay County11.5-0.7 pts
58Mahaska County11.5-0.5 pts
58Polk County11.5-0.1 pts
62Adair County11.4-0.3 pts
62Fremont County11.4+0.1 pts
62Hancock County11.4-0.8 pts
62Scott County11.4-0.8 pts
66Cerro Gordo County11.3-0.3 pts
66Cherokee County11.3-0.6 pts
66Harrison County11.3-0.7 pts
66Humboldt County11.3-1.4 pts
66Pocahontas County11.3-0.6 pts
71Johnson County11.2+0.1 pts
72Worth County11.1-1.5 pts
73Butler County11-0.5 pts
73Palo Alto County11-0.5 pts
75Jones County10.9-0.4 pts
75Winnebago County10.9-0.6 pts
77Boone County10.8-0.3 pts
77Kossuth County10.8-0.4 pts
79Winneshiek County10.7-1.1 pts
80Madison County10.6-0.2 pts
81Shelby County10.5-0.8 pts
82Dickinson County10.4-0.3 pts
82Jasper County10.4-1.1 pts
84Plymouth County10.2+0.1 pts
84Poweshiek County10.2-0.7 pts
86Story County10.1-0.5 pts
87Mills County9.9-0.6 pts
88Dubuque County9.8+0.1 pts
89Benton County9.7-0.4 pts
89Carroll County9.7-1.1 pts
89Grundy County9.70 pts
92Cedar County9.5-0.4 pts
93Clinton County9.4-1.1 pts
93Linn County9.4-1.3 pts
95Marion County9.2-1 pts
96Iowa County8.8-0.5 pts
97Dallas County8.6-0.6 pts
97Warren County8.6-0.4 pts
99Bremer County8-0.7 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-2013-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), 2013) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-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), 2013. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2013. 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), 2013. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2013.

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), 2013 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2013 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2013,
  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), 2013}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2013. 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-2013-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), 2013
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-2013-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2013
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/iowa-counties?period=2013.
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-2013-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 21.8% in 2013, according to the U.S. Census Bureau.

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

Bremer County, with 8% in 2013.

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