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), 2024

Davis County had the highest uninsured rate, ages 19 to 34 (US, ACS) of 99 counties in 2024, at 40.8%. O'Brien County had the lowest, at 2.5%. The median was 8.9% and the figure for Iowa was 9.2%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest40.8Davis County
Lowest2.5O'Brien County
Median8.999 counties
Iowa9.2History

Map of counties, 2024

Adair County: 8.2 %Adams County: 4.8 %Allamakee County: 11 %Appanoose County: 14.7 %Audubon County: 6.5 %Benton County: 6.8 %Black Hawk County: 8 %Boone County: 7.2 %Bremer County: 4.5 %Buchanan County: 12.6 %Buena Vista County: 13.4 %Butler County: 9.5 %Calhoun County: 8.8 %Carroll County: 6.6 %Cass County: 7.9 %Cedar County: 4.7 %Cerro Gordo County: 10.4 %Cherokee County: 7.3 %Chickasaw County: 16.5 %Clarke County: 7.9 %Clay County: 14.7 %Clayton County: 16.6 %Clinton County: 7.9 %Crawford County: 18.5 %Dallas County: 6.9 %Davis County: 40.8 %Decatur County: 7 %Delaware County: 8.9 %Des Moines County: 6.3 %Dickinson County: 3.3 %Dubuque County: 6.7 %Emmet County: 15 %Fayette County: 10.6 %Floyd County: 5 %Franklin County: 10.7 %Fremont County: 10 %Greene County: 9.9 %Grundy County: 3.1 %Guthrie County: 8.2 %Hamilton County: 8 %Hancock County: 8 %Hardin County: 7.7 %Harrison County: 11.1 %Henry County: 8.8 %Howard County: 14.3 %Humboldt County: 12.4 %Ida County: 8.4 %Iowa County: 10.1 %Jackson County: 8.2 %Jasper County: 5.7 %Jefferson County: 17.4 %Johnson County: 7.6 %Jones County: 9.6 %Keokuk County: 5.6 %Kossuth County: 9.1 %Lee County: 10 %Linn County: 9.2 %Louisa County: 9.1 %Lucas County: 17.3 %Lyon County: 4.8 %Madison County: 11.4 %Mahaska County: 9.1 %Marion County: 3.1 %Marshall County: 8.4 %Mills County: 5.2 %Mitchell County: 15 %Monona County: 5.8 %Monroe County: 5.5 %Montgomery County: 5.7 %Muscatine County: 7 %O'Brien County: 2.5 %Osceola County: 22.8 %Page County: 13.1 %Palo Alto County: 7.5 %Plymouth County: 9 %Pocahontas County: 14.5 %Polk County: 9.7 %Pottawattamie County: 10.6 %Poweshiek County: 6 %Ringgold County: 8.8 %Sac County: 9 %Scott County: 10.8 %Shelby County: 5.1 %Sioux County: 7.3 %Story County: 7.1 %Tama County: 13.3 %Taylor County: 7.6 %Union County: 11.4 %Van Buren County: 34.9 %Wapello County: 14.5 %Warren County: 4 %Washington County: 11.3 %Wayne County: 21.9 %Webster County: 12 %Winnebago County: 14.9 %Winneshiek County: 5.6 %Woodbury County: 13.7 %Worth County: 17.3 %Wright County: 15.7 %
  • Under 5.7
  • 5.7 to 7.6
  • 7.6 to 8.9
  • 8.9 to 11
  • 11 to 15
  • 15 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2024

Davis County: 40.8 %Davis County40.8Van Buren County: 34.9 %Van Buren County34.9Osceola County: 22.8 %Osceola County22.8Wayne County: 21.9 %Wayne County21.9Crawford County: 18.5 %Crawford County18.5Jefferson County: 17.4 %Jefferson County17.4Lucas County: 17.3 %Lucas County17.3Worth County: 17.3 %Worth County17.3Clayton County: 16.6 %Clayton County16.6Chickasaw County: 16.5 %Chickasaw County16.5Wright County: 15.7 %Wright County15.7Mitchell County: 15 %Mitchell County15Emmet County: 15 %Emmet County15Winnebago County: 14.9 %Winnebago County14.9Clay County: 14.7 %Clay County14.7Appanoose County: 14.7 %Appanoose County14.7Wapello County: 14.5 %Wapello County14.5Pocahontas County: 14.5 %Pocahontas County14.5Howard County: 14.3 %Howard County14.3Woodbury County: 13.7 %Woodbury County13.7Buena Vista County: 13.4 %Buena Vista County13.4Tama County: 13.3 %Tama County13.3Page County: 13.1 %Page County13.1Buchanan County: 12.6 %Buchanan County12.6Humboldt County: 12.4 %Humboldt County12.4Webster County: 12 %Webster County12Madison County: 11.4 %Madison County11.4Union County: 11.4 %Union County11.4Washington County: 11.3 %Washington County11.3Harrison County: 11.1 %Harrison County11.1Allamakee County: 11 %Allamakee County11Scott County: 10.8 %Scott County10.8Franklin County: 10.7 %Franklin County10.7Fayette County: 10.6 %Fayette County10.6Pottawattamie County: 10.6 %Pottawattamie County10.6Cerro Gordo County: 10.4 %Cerro Gordo County10.4Iowa County: 10.1 %Iowa County10.1Lee County: 10 %Lee County10Fremont County: 10 %Fremont County10Greene County: 9.9 %Greene County9.9Davis County: 40.8 %Davis County40.8Van Buren County: 34.9 %Van Buren County34.9Osceola County: 22.8 %Osceola County22.8Wayne County: 21.9 %Wayne County21.9Crawford County: 18.5 %Crawford County18.5Jefferson County: 17.4 %Jefferson County17.4Lucas County: 17.3 %Lucas County17.3Worth County: 17.3 %Worth County17.3Clayton County: 16.6 %Clayton County16.6Chickasaw County: 16.5 %Chickasaw County16.5Wright County: 15.7 %Wright County15.7Mitchell County: 15 %Mitchell County15Emmet County: 15 %Emmet County15Winnebago County: 14.9 %Winnebago County14.9Clay County: 14.7 %Clay County14.7Appanoose County: 14.7 %Appanoose County14.7Wapello County: 14.5 %Wapello County14.5Pocahontas County: 14.5 %Pocahontas County14.5Howard County: 14.3 %Howard County14.3Woodbury County: 13.7 %Woodbury County13.7Buena Vista County: 13.4 %Buena Vista County13.4Tama County: 13.3 %Tama County13.3Page County: 13.1 %Page County13.1Buchanan County: 12.6 %Buchanan County12.6Humboldt County: 12.4 %Humboldt County12.4Webster County: 12 %Webster County12Madison County: 11.4 %Madison County11.4Union County: 11.4 %Union County11.4Washington County: 11.3 %Washington County11.3Harrison County: 11.1 %Harrison County11.1Allamakee County: 11 %Allamakee County11Scott County: 10.8 %Scott County10.8Franklin County: 10.7 %Franklin County10.7Fayette County: 10.6 %Fayette County10.6Pottawattamie County: 10.6 %Pottawattamie County10.6Cerro Gordo County: 10.4 %Cerro Gordo County10.4Iowa County: 10.1 %Iowa County10.1Lee County: 10 %Lee County10Fremont County: 10 %Fremont County10Greene County: 9.9 %Greene County9.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Davis County40.8+0.8 pts
2Van Buren County34.9+4.9 pts
3Osceola County22.8+1.7 pts
4Wayne County21.9-0.1 pts
5Crawford County18.5+0.1 pts
6Jefferson County17.4-1.1 pts
7Lucas County17.3+1.9 pts
8Worth County17.3+1.5 pts
9Clayton County16.6-0.1 pts
10Chickasaw County16.5+3.5 pts
11Wright County15.7+3.3 pts
12Mitchell County15-0.6 pts
13Emmet County15+4.9 pts
14Winnebago County14.9+4.3 pts
15Clay County14.7+4 pts
16Appanoose County14.7-5.2 pts
17Wapello County14.5+1.8 pts
18Pocahontas County14.5+0.3 pts
19Howard County14.3+6.4 pts
20Woodbury County13.7+0.9 pts
21Buena Vista County13.4-2.5 pts
22Tama County13.3-0.9 pts
23Page County13.1+0.6 pts
24Buchanan County12.6+3 pts
25Humboldt County12.4+0.5 pts
26Webster County12-1.1 pts
27Madison County11.4+2.5 pts
28Union County11.4+3.3 pts
29Washington County11.3-1.5 pts
30Harrison County11.1+1.6 pts
31Allamakee County11-0.8 pts
32Scott County10.8-0.1 pts
33Franklin County10.7-6 pts
34Fayette County10.6+1.2 pts
35Pottawattamie County10.6+2.1 pts
36Cerro Gordo County10.4+1.2 pts
37Iowa County10.1+3.2 pts
38Lee County10+0.9 pts
39Fremont County10+0.2 pts
40Greene County9.9+3.7 pts
41Polk County9.7+0.7 pts
42Jones County9.6+3.2 pts
43Butler County9.5-0.1 pts
44Linn County9.2+0.4 pts
45Mahaska County9.1+1.4 pts
46Kossuth County9.1+0.8 pts
47Louisa County9.1-2.2 pts
48Plymouth County9-1 pts
49Sac County9-0.9 pts
50Delaware County8.9-0.7 pts
51Henry County8.8-1.7 pts
52Calhoun County8.8+3.3 pts
52Ringgold County8.8-1.5 pts
54Marshall County8.4-1 pts
55Ida County8.4+0.7 pts
56Adair County8.2+1.5 pts
56Jackson County8.2-1.1 pts
58Guthrie County8.2-0.6 pts
59Hamilton County8-0.2 pts
60Black Hawk County8+0.7 pts
61Hancock County8-0.5 pts
62Clarke County7.9+1.5 pts
63Cass County7.9-2.2 pts
64Clinton County7.9+0.6 pts
65Hardin County7.7-1.3 pts
66Taylor County7.6-6.7 pts
67Johnson County7.6-0 pts
68Palo Alto County7.5+0.5 pts
69Cherokee County7.3+0.3 pts
70Sioux County7.3+1.7 pts
71Boone County7.2+0.2 pts
72Story County7.1-0.2 pts
73Decatur County7-1.6 pts
74Muscatine County7-0.3 pts
75Dallas County6.9-0 pts
76Benton County6.8-0.1 pts
77Dubuque County6.7+0.2 pts
78Carroll County6.6+0.3 pts
79Audubon County6.5-1.5 pts
80Des Moines County6.3-0.3 pts
81Poweshiek County6-0.1 pts
82Monona County5.8+0.9 pts
83Montgomery County5.7+1.5 pts
84Jasper County5.7-0.1 pts
85Winneshiek County5.6+0.6 pts
86Keokuk County5.6+0.9 pts
87Monroe County5.5+2.2 pts
88Mills County5.2+0.5 pts
89Shelby County5.1-1.1 pts
90Floyd County5-3.6 pts
91Lyon County4.8-3.9 pts
92Adams County4.8+2.8 pts
93Cedar County4.7+0.7 pts
94Bremer County4.5-0.4 pts
95Warren County4+0.1 pts
96Dickinson County3.3-2.9 pts
97Marion County3.1-1.1 pts
98Grundy County3.1-0.3 pts
99O'Brien County2.5-1.1 pts

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/2024/table-based-SF/data/5YRData/acsdt5y2024-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), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-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), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties. 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), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties.

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), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2024,
  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), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties. 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/2024/table-based-SF/data/5YRData/acsdt5y2024-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), 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/iowa-counties.
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/2024/table-based-SF/data/5YRData/acsdt5y2024-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 40.8% in 2024, according to the U.S. Census Bureau.

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

O'Brien County, with 2.5% in 2024.

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