Data / Rankings / Uninsured rate, ages 35 to 64 (US, ACS) / Counties in Iowa

Counties in Iowa by uninsured rate, ages 35 to 64 (US, ACS), 2024

Van Buren County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 99 counties in 2024, at 18.3%. Warren County had the lowest, at 2.2%. The median was 6.2% and the figure for Iowa was 6%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest18.3Van Buren County
Lowest2.2Warren County
Median6.299 counties
Iowa6History

Map of counties, 2024

Adair County: 6.2 %Adams County: 5 %Allamakee County: 9.2 %Appanoose County: 7.7 %Audubon County: 7 %Benton County: 3.7 %Black Hawk County: 6.7 %Boone County: 4.1 %Bremer County: 2.6 %Buchanan County: 5.2 %Buena Vista County: 7.8 %Butler County: 3.2 %Calhoun County: 5.5 %Carroll County: 3.9 %Cass County: 6.1 %Cedar County: 5.2 %Cerro Gordo County: 5.3 %Cherokee County: 6.6 %Chickasaw County: 9.2 %Clarke County: 5.1 %Clay County: 6.9 %Clayton County: 8.5 %Clinton County: 8.3 %Crawford County: 10.3 %Dallas County: 4.5 %Davis County: 15 %Decatur County: 8.6 %Delaware County: 2.6 %Des Moines County: 6.2 %Dickinson County: 5.2 %Dubuque County: 4.3 %Emmet County: 5.2 %Fayette County: 7.4 %Floyd County: 5.7 %Franklin County: 16.1 %Fremont County: 4.8 %Greene County: 4.6 %Grundy County: 7.8 %Guthrie County: 3.1 %Hamilton County: 7.9 %Hancock County: 9.2 %Hardin County: 7.1 %Harrison County: 5 %Henry County: 5.6 %Howard County: 10.8 %Humboldt County: 6 %Ida County: 8.8 %Iowa County: 3.9 %Jackson County: 7.7 %Jasper County: 7.2 %Jefferson County: 8.1 %Johnson County: 4.8 %Jones County: 4.1 %Keokuk County: 5.7 %Kossuth County: 5.1 %Lee County: 8.1 %Linn County: 4.8 %Louisa County: 6.9 %Lucas County: 9.1 %Lyon County: 6.9 %Madison County: 3.1 %Mahaska County: 6 %Marion County: 3.4 %Marshall County: 9.1 %Mills County: 3.5 %Mitchell County: 9.2 %Monona County: 6.1 %Monroe County: 4.4 %Montgomery County: 6.7 %Muscatine County: 6.7 %O'Brien County: 5.5 %Osceola County: 5.2 %Page County: 5.1 %Palo Alto County: 7.6 %Plymouth County: 5.8 %Pocahontas County: 10.7 %Polk County: 6.3 %Pottawattamie County: 6.3 %Poweshiek County: 6.2 %Ringgold County: 10.2 %Sac County: 6.8 %Scott County: 6 %Shelby County: 3.8 %Sioux County: 7.2 %Story County: 3.8 %Tama County: 8.2 %Taylor County: 5.7 %Union County: 11.8 %Van Buren County: 18.3 %Wapello County: 7.9 %Warren County: 2.2 %Washington County: 9 %Wayne County: 7.5 %Webster County: 6.5 %Winnebago County: 5 %Winneshiek County: 3.1 %Woodbury County: 8.2 %Worth County: 5.3 %Wright County: 6.5 %
  • Under 4.4
  • 4.4 to 5.2
  • 5.2 to 6.2
  • 6.2 to 7.2
  • 7.2 to 8.6
  • 8.6 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

Van Buren County: 18.3 %Van Buren County18.3Franklin County: 16.1 %Franklin County16.1Davis County: 15 %Davis County15Union County: 11.8 %Union County11.8Howard County: 10.8 %Howard County10.8Pocahontas County: 10.7 %Pocahontas County10.7Crawford County: 10.3 %Crawford County10.3Ringgold County: 10.2 %Ringgold County10.2Mitchell County: 9.2 %Mitchell County9.2Allamakee County: 9.2 %Allamakee County9.2Hancock County: 9.2 %Hancock County9.2Chickasaw County: 9.2 %Chickasaw County9.2Lucas County: 9.1 %Lucas County9.1Marshall County: 9.1 %Marshall County9.1Washington County: 9 %Washington County9Ida County: 8.8 %Ida County8.8Decatur County: 8.6 %Decatur County8.6Clayton County: 8.5 %Clayton County8.5Clinton County: 8.3 %Clinton County8.3Tama County: 8.2 %Tama County8.2Woodbury County: 8.2 %Woodbury County8.2Lee County: 8.1 %Lee County8.1Jefferson County: 8.1 %Jefferson County8.1Wapello County: 7.9 %Wapello County7.9Hamilton County: 7.9 %Hamilton County7.9Buena Vista County: 7.8 %Buena Vista County7.8Grundy County: 7.8 %Grundy County7.8Appanoose County: 7.7 %Appanoose County7.7Jackson County: 7.7 %Jackson County7.7Palo Alto County: 7.6 %Palo Alto County7.6Wayne County: 7.5 %Wayne County7.5Fayette County: 7.4 %Fayette County7.4Jasper County: 7.2 %Jasper County7.2Sioux County: 7.2 %Sioux County7.2Hardin County: 7.1 %Hardin County7.1Audubon County: 7 %Audubon County7Clay County: 6.9 %Clay County6.9Louisa County: 6.9 %Louisa County6.9Lyon County: 6.9 %Lyon County6.9Sac County: 6.8 %Sac County6.8Van Buren County: 18.3 %Van Buren County18.3Franklin County: 16.1 %Franklin County16.1Davis County: 15 %Davis County15Union County: 11.8 %Union County11.8Howard County: 10.8 %Howard County10.8Pocahontas County: 10.7 %Pocahontas County10.7Crawford County: 10.3 %Crawford County10.3Ringgold County: 10.2 %Ringgold County10.2Mitchell County: 9.2 %Mitchell County9.2Allamakee County: 9.2 %Allamakee County9.2Hancock County: 9.2 %Hancock County9.2Chickasaw County: 9.2 %Chickasaw County9.2Lucas County: 9.1 %Lucas County9.1Marshall County: 9.1 %Marshall County9.1Washington County: 9 %Washington County9Ida County: 8.8 %Ida County8.8Decatur County: 8.6 %Decatur County8.6Clayton County: 8.5 %Clayton County8.5Clinton County: 8.3 %Clinton County8.3Tama County: 8.2 %Tama County8.2Woodbury County: 8.2 %Woodbury County8.2Lee County: 8.1 %Lee County8.1Jefferson County: 8.1 %Jefferson County8.1Wapello County: 7.9 %Wapello County7.9Hamilton County: 7.9 %Hamilton County7.9Buena Vista County: 7.8 %Buena Vista County7.8Grundy County: 7.8 %Grundy County7.8Appanoose County: 7.7 %Appanoose County7.7Jackson County: 7.7 %Jackson County7.7Palo Alto County: 7.6 %Palo Alto County7.6Wayne County: 7.5 %Wayne County7.5Fayette County: 7.4 %Fayette County7.4Jasper County: 7.2 %Jasper County7.2Sioux County: 7.2 %Sioux County7.2Hardin County: 7.1 %Hardin County7.1Audubon County: 7 %Audubon County7Clay County: 6.9 %Clay County6.9Louisa County: 6.9 %Louisa County6.9Lyon County: 6.9 %Lyon County6.9Sac County: 6.8 %Sac County6.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Van Buren County18.3+7.2 pts
2Franklin County16.1+1 pts
3Davis County15-5.3 pts
4Union County11.8-0.2 pts
5Howard County10.8-0.9 pts
6Pocahontas County10.7+1 pts
7Crawford County10.3+0.3 pts
8Ringgold County10.2-2.8 pts
9Mitchell County9.2+0.9 pts
10Allamakee County9.2+1.1 pts
11Hancock County9.2+2.9 pts
12Chickasaw County9.2+0.5 pts
13Lucas County9.1+0.6 pts
13Marshall County9.1+1 pts
15Washington County9+0.7 pts
16Ida County8.8+0.4 pts
17Decatur County8.6-1.6 pts
18Clayton County8.5+0.9 pts
19Clinton County8.3-0.1 pts
20Tama County8.2-1.1 pts
21Woodbury County8.2+0.2 pts
22Lee County8.1+0.7 pts
23Jefferson County8.1-0.4 pts
24Wapello County7.9-1 pts
25Hamilton County7.9+3.4 pts
26Buena Vista County7.8+1 pts
26Grundy County7.8+3.3 pts
28Appanoose County7.7-3 pts
29Jackson County7.7+0.6 pts
30Palo Alto County7.6-0.5 pts
31Wayne County7.5-0.1 pts
32Fayette County7.4+1.3 pts
33Jasper County7.2+0.5 pts
34Sioux County7.2-1.2 pts
35Hardin County7.1+1.5 pts
36Audubon County7+1.5 pts
37Clay County6.90 pts
38Louisa County6.9+0.1 pts
38Lyon County6.9+1 pts
40Sac County6.8-1 pts
41Montgomery County6.7+2.1 pts
42Black Hawk County6.7+1.3 pts
43Muscatine County6.7+1.2 pts
44Cherokee County6.6-2.7 pts
45Wright County6.5-0.9 pts
46Webster County6.5-1.3 pts
47Pottawattamie County6.3-0.4 pts
48Polk County6.3+0.3 pts
49Des Moines County6.2-0.3 pts
50Adair County6.2+0.5 pts
50Poweshiek County6.2+0.8 pts
52Monona County6.1+0.8 pts
53Cass County6.10 pts
54Humboldt County6-0.6 pts
55Scott County6-0.2 pts
56Mahaska County6-1.5 pts
57Plymouth County5.8-0.4 pts
58Keokuk County5.7+0.7 pts
59Taylor County5.7-1.7 pts
60Floyd County5.7+0.9 pts
61Henry County5.6+1.6 pts
62Calhoun County5.5+1 pts
63O'Brien County5.5+0.7 pts
64Cerro Gordo County5.3+1 pts
65Worth County5.3-0.6 pts
66Buchanan County5.2-0 pts
67Osceola County5.2-0.1 pts
68Dickinson County5.2-0.7 pts
69Emmet County5.2-2.3 pts
70Cedar County5.2+0.7 pts
71Kossuth County5.1-0.3 pts
71Page County5.1-0.4 pts
73Clarke County5.1-2.6 pts
74Adams County5-1.8 pts
75Winnebago County5+0.2 pts
76Harrison County5+0.3 pts
77Fremont County4.8-0.7 pts
78Johnson County4.8-0.5 pts
79Linn County4.8+0.6 pts
80Greene County4.6+0.2 pts
81Dallas County4.5-0 pts
82Monroe County4.40 pts
83Dubuque County4.3-0.2 pts
84Boone County4.1-0.8 pts
84Jones County4.1+0.3 pts
86Iowa County3.9+0.9 pts
87Carroll County3.9+0.7 pts
88Story County3.8-0.4 pts
89Shelby County3.8-1.7 pts
90Benton County3.7-0.1 pts
91Mills County3.5-0.1 pts
92Marion County3.4+0.3 pts
93Butler County3.2-0.8 pts
94Madison County3.1-0.8 pts
95Winneshiek County3.1-0.6 pts
96Guthrie County3.1-0.3 pts
97Bremer County2.60 pts
98Delaware County2.6-1 pts
99Warren County2.2-0.5 pts

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. 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 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, 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 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in Iowa by uninsured rate, ages 35 to 64 (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 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Iowa by uninsured rate, ages 35 to 64 (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-35-64/iowa-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in Iowa by uninsured rate, ages 35 to 64 (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-35-64/iowa-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Iowa by uninsured rate, ages 35 to 64 (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-35-64/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 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Iowa by uninsured rate, ages 35 to 64 (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-35-64/iowa-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, 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 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Iowa by uninsured rate, ages 35 to 64 (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-35-64/iowa-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, 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 35 to 64 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Van Buren County, with 18.3% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Warren County, with 2.2% 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 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in Iowa: more rankings