Data / Rankings / Uninsured rate, ages 19 to 34 (US, ACS) / Counties in Iowa

Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS)

Davis County had the highest uninsured rate, ages 19 to 34 (US, ACS) of 99 counties in 2021, at 37%. Keokuk County had the lowest, at 2.9%. The median was 8.9% and the figure for Iowa was 8.8%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest37Davis County
Lowest2.9Keokuk County
Median8.999 counties
Iowa8.8History

Map of counties, 2021

Adair County: 11.2 %Adams County: 4.8 %Allamakee County: 10.6 %Appanoose County: 18.4 %Audubon County: 10.6 %Benton County: 6 %Black Hawk County: 8 %Boone County: 8.9 %Bremer County: 4.6 %Buchanan County: 10.5 %Buena Vista County: 12.5 %Butler County: 10.6 %Calhoun County: 8.1 %Carroll County: 9.2 %Cass County: 9.5 %Cedar County: 3.8 %Cerro Gordo County: 10.3 %Cherokee County: 8.3 %Chickasaw County: 7.3 %Clarke County: 8.5 %Clay County: 11.1 %Clayton County: 14.3 %Clinton County: 6.7 %Crawford County: 20.7 %Dallas County: 7.2 %Davis County: 37 %Decatur County: 9.8 %Delaware County: 9 %Des Moines County: 9.2 %Dickinson County: 10.7 %Dubuque County: 6.9 %Emmet County: 11.2 %Fayette County: 10.3 %Floyd County: 12.3 %Franklin County: 23.7 %Fremont County: 7.2 %Greene County: 5.2 %Grundy County: 4.6 %Guthrie County: 8.5 %Hamilton County: 7.3 %Hancock County: 5.2 %Hardin County: 8.1 %Harrison County: 7.4 %Henry County: 8.5 %Howard County: 9.4 %Humboldt County: 9.7 %Ida County: 9.2 %Iowa County: 7.8 %Jackson County: 9.2 %Jasper County: 5.3 %Jefferson County: 11.1 %Johnson County: 7.5 %Jones County: 7.4 %Keokuk County: 2.9 %Kossuth County: 7.3 %Lee County: 10.3 %Linn County: 8.6 %Louisa County: 10.1 %Lucas County: 11.5 %Lyon County: 10.4 %Madison County: 5.5 %Mahaska County: 7.3 %Marion County: 4 %Marshall County: 11.3 %Mills County: 4.9 %Mitchell County: 14.7 %Monona County: 8.9 %Monroe County: 7.7 %Montgomery County: 9.1 %Muscatine County: 6 %O'Brien County: 4.4 %Osceola County: 16.6 %Page County: 11.1 %Palo Alto County: 6 %Plymouth County: 10.9 %Pocahontas County: 6.7 %Polk County: 8.5 %Pottawattamie County: 9.7 %Poweshiek County: 6.9 %Ringgold County: 4.5 %Sac County: 6.5 %Scott County: 8.9 %Shelby County: 17.4 %Sioux County: 5.7 %Story County: 8.3 %Tama County: 15.3 %Taylor County: 22.4 %Union County: 14 %Van Buren County: 29.8 %Wapello County: 11.3 %Warren County: 3.7 %Washington County: 13.6 %Wayne County: 18.4 %Webster County: 12.9 %Winnebago County: 7.8 %Winneshiek County: 4.8 %Woodbury County: 13.4 %Worth County: 10.6 %Wright County: 4.1 %
  • Under 5.8
  • 5.8 to 7.5
  • 7.5 to 8.9
  • 8.9 to 10
  • 10 to 12
  • 12 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Davis County: 37 %Davis County37Van Buren County: 29.8 %Van Buren County29.8Franklin County: 23.7 %Franklin County23.7Taylor County: 22.4 %Taylor County22.4Crawford County: 20.7 %Crawford County20.7Appanoose County: 18.4 %Appanoose County18.4Wayne County: 18.4 %Wayne County18.4Shelby County: 17.4 %Shelby County17.4Osceola County: 16.6 %Osceola County16.6Tama County: 15.3 %Tama County15.3Mitchell County: 14.7 %Mitchell County14.7Clayton County: 14.3 %Clayton County14.3Union County: 14 %Union County14Washington County: 13.6 %Washington County13.6Woodbury County: 13.4 %Woodbury County13.4Webster County: 12.9 %Webster County12.9Buena Vista County: 12.5 %Buena Vista County12.5Floyd County: 12.3 %Floyd County12.3Lucas County: 11.5 %Lucas County11.5Marshall County: 11.3 %Marshall County11.3Wapello County: 11.3 %Wapello County11.3Emmet County: 11.2 %Emmet County11.2Adair County: 11.2 %Adair County11.2Jefferson County: 11.1 %Jefferson County11.1Clay County: 11.1 %Clay County11.1Page County: 11.1 %Page County11.1Plymouth County: 10.9 %Plymouth County10.9Dickinson County: 10.7 %Dickinson County10.7Audubon County: 10.6 %Audubon County10.6Worth County: 10.6 %Worth County10.6Allamakee County: 10.6 %Allamakee County10.6Butler County: 10.6 %Butler County10.6Buchanan County: 10.5 %Buchanan County10.5Lyon County: 10.4 %Lyon County10.4Cerro Gordo County: 10.3 %Cerro Gordo County10.3Fayette County: 10.3 %Fayette County10.3Lee County: 10.3 %Lee County10.3Louisa County: 10.1 %Louisa County10.1Decatur County: 9.8 %Decatur County9.8Pottawattamie County: 9.7 %Pottawattamie County9.7Davis County: 37 %Davis County37Van Buren County: 29.8 %Van Buren County29.8Franklin County: 23.7 %Franklin County23.7Taylor County: 22.4 %Taylor County22.4Crawford County: 20.7 %Crawford County20.7Appanoose County: 18.4 %Appanoose County18.4Wayne County: 18.4 %Wayne County18.4Shelby County: 17.4 %Shelby County17.4Osceola County: 16.6 %Osceola County16.6Tama County: 15.3 %Tama County15.3Mitchell County: 14.7 %Mitchell County14.7Clayton County: 14.3 %Clayton County14.3Union County: 14 %Union County14Washington County: 13.6 %Washington County13.6Woodbury County: 13.4 %Woodbury County13.4Webster County: 12.9 %Webster County12.9Buena Vista County: 12.5 %Buena Vista County12.5Floyd County: 12.3 %Floyd County12.3Lucas County: 11.5 %Lucas County11.5Marshall County: 11.3 %Marshall County11.3Wapello County: 11.3 %Wapello County11.3Emmet County: 11.2 %Emmet County11.2Adair County: 11.2 %Adair County11.2Jefferson County: 11.1 %Jefferson County11.1Clay County: 11.1 %Clay County11.1Page County: 11.1 %Page County11.1Plymouth County: 10.9 %Plymouth County10.9Dickinson County: 10.7 %Dickinson County10.7Audubon County: 10.6 %Audubon County10.6Worth County: 10.6 %Worth County10.6Allamakee County: 10.6 %Allamakee County10.6Butler County: 10.6 %Butler County10.6Buchanan County: 10.5 %Buchanan County10.5Lyon County: 10.4 %Lyon County10.4Cerro Gordo County: 10.3 %Cerro Gordo County10.3Fayette County: 10.3 %Fayette County10.3Lee County: 10.3 %Lee County10.3Louisa County: 10.1 %Louisa County10.1Decatur County: 9.8 %Decatur County9.8Pottawattamie County: 9.7 %Pottawattamie County9.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Davis County37
2Van Buren County29.8
3Franklin County23.7
4Taylor County22.4
5Crawford County20.7
6Appanoose County18.4
7Wayne County18.4
8Shelby County17.4
9Osceola County16.6
10Tama County15.3
11Mitchell County14.7
12Clayton County14.3
13Union County14
14Washington County13.6
15Woodbury County13.4
16Webster County12.9
17Buena Vista County12.5
18Floyd County12.3
19Lucas County11.5
20Marshall County11.3
21Wapello County11.3
22Emmet County11.2
23Adair County11.2
24Jefferson County11.1
25Clay County11.1
25Page County11.1
27Plymouth County10.9
28Dickinson County10.7
29Audubon County10.6
29Worth County10.6
31Allamakee County10.6
32Butler County10.6
33Buchanan County10.5
34Lyon County10.4
35Cerro Gordo County10.3
36Fayette County10.3
37Lee County10.3
38Louisa County10.1
39Decatur County9.8
40Pottawattamie County9.7
41Humboldt County9.7
42Cass County9.5
43Howard County9.4
44Carroll County9.2
44Jackson County9.2
46Des Moines County9.2
47Ida County9.2
48Montgomery County9.1
49Delaware County9
50Scott County8.9
51Monona County8.9
52Boone County8.9
53Linn County8.6
54Clarke County8.5
54Guthrie County8.5
56Henry County8.5
57Polk County8.5
58Story County8.3
59Cherokee County8.3
60Hardin County8.1
61Calhoun County8.1
62Black Hawk County8
63Winnebago County7.8
64Iowa County7.8
65Monroe County7.7
66Johnson County7.5
67Harrison County7.4
68Jones County7.4
69Kossuth County7.3
70Chickasaw County7.3
70Hamilton County7.3
70Mahaska County7.3
73Dallas County7.2
74Fremont County7.2
75Poweshiek County6.9
76Dubuque County6.9
77Pocahontas County6.7
78Clinton County6.7
79Sac County6.5
80Muscatine County6
81Benton County6
81Palo Alto County6
83Sioux County5.7
84Madison County5.5
85Jasper County5.3
86Greene County5.2
87Hancock County5.2
88Mills County4.9
89Winneshiek County4.8
90Adams County4.8
91Grundy County4.6
92Bremer County4.6
93Ringgold County4.5
94O'Brien County4.4
95Wright County4.1
96Marion County4
97Cedar County3.8
98Warren County3.7
99Keokuk County2.9

Other periods

About this ranking

People aged 19 to 34 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 19 to 34. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. 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). American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs (Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Iowa by uninsured rate, ages 19 to 34 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 19 to 34 (US, ACS)?

Davis County, with 37% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 19 to 34 (US, ACS)?

Keokuk County, with 2.9% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 19 to 34 (US, ACS): other rankings

Counties in Iowa: more rankings