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)

Davis County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 99 counties in 2023, at 20.3%. Bremer County had the lowest, at 2.5%. The median was 6% and the figure for Iowa was 5.9%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest20.3Davis County
Lowest2.5Bremer County
Median699 counties
Iowa5.9History

Map of counties, 2023

Adair County: 5.6 %Adams County: 6.8 %Allamakee County: 8.1 %Appanoose County: 10.6 %Audubon County: 5.4 %Benton County: 3.7 %Black Hawk County: 5.4 %Boone County: 4.9 %Bremer County: 2.5 %Buchanan County: 5.3 %Buena Vista County: 6.8 %Butler County: 4.1 %Calhoun County: 4.4 %Carroll County: 3.1 %Cass County: 6.1 %Cedar County: 4.5 %Cerro Gordo County: 4.3 %Cherokee County: 9.3 %Chickasaw County: 8.6 %Clarke County: 7.6 %Clay County: 6.9 %Clayton County: 7.6 %Clinton County: 8.4 %Crawford County: 9.9 %Dallas County: 4.5 %Davis County: 20.3 %Decatur County: 10.2 %Delaware County: 3.6 %Des Moines County: 6.5 %Dickinson County: 5.9 %Dubuque County: 4.5 %Emmet County: 7.5 %Fayette County: 6.1 %Floyd County: 4.7 %Franklin County: 15 %Fremont County: 5.5 %Greene County: 4.5 %Grundy County: 4.5 %Guthrie County: 3.3 %Hamilton County: 4.5 %Hancock County: 6.3 %Hardin County: 5.6 %Harrison County: 4.7 %Henry County: 4 %Howard County: 11.7 %Humboldt County: 6.6 %Ida County: 8.4 %Iowa County: 3 %Jackson County: 7 %Jasper County: 6.7 %Jefferson County: 8.5 %Johnson County: 5.3 %Jones County: 3.8 %Keokuk County: 5 %Kossuth County: 5.4 %Lee County: 7.4 %Linn County: 4.2 %Louisa County: 6.8 %Lucas County: 8.5 %Lyon County: 6 %Madison County: 3.9 %Mahaska County: 7.5 %Marion County: 3.2 %Marshall County: 8.1 %Mills County: 3.6 %Mitchell County: 8.3 %Monona County: 5.3 %Monroe County: 4.4 %Montgomery County: 4.6 %Muscatine County: 5.5 %O'Brien County: 4.7 %Osceola County: 5.3 %Page County: 5.5 %Palo Alto County: 8 %Plymouth County: 6.2 %Pocahontas County: 9.8 %Polk County: 6 %Pottawattamie County: 6.7 %Poweshiek County: 5.4 %Ringgold County: 12.9 %Sac County: 7.7 %Scott County: 6.2 %Shelby County: 5.5 %Sioux County: 8.3 %Story County: 4.2 %Tama County: 9.4 %Taylor County: 7.3 %Union County: 12 %Van Buren County: 11.2 %Wapello County: 8.9 %Warren County: 2.7 %Washington County: 8.3 %Wayne County: 7.7 %Webster County: 7.8 %Winnebago County: 4.8 %Winneshiek County: 3.7 %Woodbury County: 8 %Worth County: 5.9 %Wright County: 7.4 %
  • Under 4.3
  • 4.3 to 5.3
  • 5.3 to 6
  • 6 to 7.4
  • 7.4 to 8.4
  • 8.4 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

Davis County: 20.3 %Davis County20.3Franklin County: 15 %Franklin County15Ringgold County: 12.9 %Ringgold County12.9Union County: 12 %Union County12Howard County: 11.7 %Howard County11.7Van Buren County: 11.2 %Van Buren County11.2Appanoose County: 10.6 %Appanoose County10.6Decatur County: 10.2 %Decatur County10.2Crawford County: 9.9 %Crawford County9.9Pocahontas County: 9.8 %Pocahontas County9.8Tama County: 9.4 %Tama County9.4Cherokee County: 9.3 %Cherokee County9.3Wapello County: 8.9 %Wapello County8.9Chickasaw County: 8.6 %Chickasaw County8.6Lucas County: 8.5 %Lucas County8.5Jefferson County: 8.5 %Jefferson County8.5Ida County: 8.4 %Ida County8.4Clinton County: 8.4 %Clinton County8.4Mitchell County: 8.3 %Mitchell County8.3Sioux County: 8.3 %Sioux County8.3Washington County: 8.3 %Washington County8.3Marshall County: 8.1 %Marshall County8.1Allamakee County: 8.1 %Allamakee County8.1Woodbury County: 8 %Woodbury County8Palo Alto County: 8 %Palo Alto County8Webster County: 7.8 %Webster County7.8Sac County: 7.7 %Sac County7.7Wayne County: 7.7 %Wayne County7.7Clarke County: 7.6 %Clarke County7.6Clayton County: 7.6 %Clayton County7.6Mahaska County: 7.5 %Mahaska County7.5Emmet County: 7.5 %Emmet County7.5Wright County: 7.4 %Wright County7.4Lee County: 7.4 %Lee County7.4Taylor County: 7.3 %Taylor County7.3Jackson County: 7 %Jackson County7Clay County: 6.9 %Clay County6.9Louisa County: 6.8 %Louisa County6.8Adams County: 6.8 %Adams County6.8Buena Vista County: 6.8 %Buena Vista County6.8Davis County: 20.3 %Davis County20.3Franklin County: 15 %Franklin County15Ringgold County: 12.9 %Ringgold County12.9Union County: 12 %Union County12Howard County: 11.7 %Howard County11.7Van Buren County: 11.2 %Van Buren County11.2Appanoose County: 10.6 %Appanoose County10.6Decatur County: 10.2 %Decatur County10.2Crawford County: 9.9 %Crawford County9.9Pocahontas County: 9.8 %Pocahontas County9.8Tama County: 9.4 %Tama County9.4Cherokee County: 9.3 %Cherokee County9.3Wapello County: 8.9 %Wapello County8.9Chickasaw County: 8.6 %Chickasaw County8.6Lucas County: 8.5 %Lucas County8.5Jefferson County: 8.5 %Jefferson County8.5Ida County: 8.4 %Ida County8.4Clinton County: 8.4 %Clinton County8.4Mitchell County: 8.3 %Mitchell County8.3Sioux County: 8.3 %Sioux County8.3Washington County: 8.3 %Washington County8.3Marshall County: 8.1 %Marshall County8.1Allamakee County: 8.1 %Allamakee County8.1Woodbury County: 8 %Woodbury County8Palo Alto County: 8 %Palo Alto County8Webster County: 7.8 %Webster County7.8Sac County: 7.7 %Sac County7.7Wayne County: 7.7 %Wayne County7.7Clarke County: 7.6 %Clarke County7.6Clayton County: 7.6 %Clayton County7.6Mahaska County: 7.5 %Mahaska County7.5Emmet County: 7.5 %Emmet County7.5Wright County: 7.4 %Wright County7.4Lee County: 7.4 %Lee County7.4Taylor County: 7.3 %Taylor County7.3Jackson County: 7 %Jackson County7Clay County: 6.9 %Clay County6.9Louisa County: 6.8 %Louisa County6.8Adams County: 6.8 %Adams County6.8Buena Vista County: 6.8 %Buena Vista County6.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Davis County20.3-2.7 pts
2Franklin County15+1.6 pts
3Ringgold County12.9+1.5 pts
4Union County12+0.2 pts
5Howard County11.7+0.4 pts
6Van Buren County11.2-4.2 pts
7Appanoose County10.6+3.2 pts
8Decatur County10.2+0.8 pts
9Crawford County9.9-1.6 pts
10Pocahontas County9.8+1.6 pts
11Tama County9.4+0.2 pts
12Cherokee County9.3-0.6 pts
13Wapello County8.9+0.6 pts
14Chickasaw County8.6-0.3 pts
15Lucas County8.5-1.4 pts
16Jefferson County8.5+0.5 pts
17Ida County8.4+0.5 pts
18Clinton County8.4-0.3 pts
19Mitchell County8.3+0.3 pts
20Sioux County8.3+1.6 pts
21Washington County8.3-0.7 pts
22Marshall County8.1+0.4 pts
23Allamakee County8.1+0.5 pts
24Woodbury County8-0.1 pts
25Palo Alto County8+2.5 pts
26Webster County7.8+1 pts
27Sac County7.7-1 pts
28Wayne County7.7+0.1 pts
29Clarke County7.6-0.9 pts
30Clayton County7.6+0.4 pts
31Mahaska County7.5-0.1 pts
32Emmet County7.5-1.1 pts
33Wright County7.4+0.6 pts
34Lee County7.4+0.7 pts
35Taylor County7.3+1 pts
36Jackson County7+0.4 pts
37Clay County6.9-0.5 pts
38Louisa County6.8-0.8 pts
39Adams County6.8+0.3 pts
40Buena Vista County6.8+1.2 pts
41Jasper County6.7+1.2 pts
42Pottawattamie County6.7-0.3 pts
43Humboldt County6.6+0.6 pts
44Des Moines County6.5+1.5 pts
45Hancock County6.3+1.1 pts
46Plymouth County6.2+0.2 pts
47Scott County6.2-0.2 pts
48Fayette County6.1-0.2 pts
49Cass County6.1-1.5 pts
50Lyon County6-0.2 pts
50Polk County6+0.1 pts
52Dickinson County5.9-1 pts
53Worth County5.9-0.2 pts
54Adair County5.6+1 pts
55Hardin County5.6+0.2 pts
56Fremont County5.50 pts
56Page County5.5-1.4 pts
56Shelby County5.5+0.1 pts
59Muscatine County5.5-0.5 pts
60Black Hawk County5.4-0.1 pts
61Audubon County5.4-1.1 pts
62Kossuth County5.4-0.4 pts
62Poweshiek County5.4-0.4 pts
64Osceola County5.3-0.2 pts
65Johnson County5.3-0.4 pts
66Monona County5.3-1.8 pts
67Buchanan County5.3+0.2 pts
68Keokuk County5+0.1 pts
69Boone County4.9-0.7 pts
70Winnebago County4.8+1.1 pts
71Floyd County4.7-0.1 pts
72O'Brien County4.7+0.4 pts
73Harrison County4.7-0.8 pts
74Montgomery County4.6+1 pts
75Dallas County4.5+0.1 pts
76Hamilton County4.5-1 pts
77Cedar County4.5-0.3 pts
77Dubuque County4.50 pts
79Greene County4.5+1.1 pts
79Grundy County4.5-0.3 pts
81Calhoun County4.4-1.1 pts
82Monroe County4.4-0.3 pts
83Cerro Gordo County4.3-0.7 pts
84Story County4.2-0.6 pts
85Linn County4.2-0.1 pts
86Butler County4.1-0.2 pts
87Henry County4+0.1 pts
88Madison County3.9-0.1 pts
89Jones County3.8-0.3 pts
90Benton County3.7+0.3 pts
90Winneshiek County3.7+0.6 pts
92Mills County3.6-1.2 pts
93Delaware County3.6+1.1 pts
94Guthrie County3.3-0.4 pts
95Marion County3.2-0.9 pts
96Carroll County3.1-0.5 pts
97Iowa County3-0.1 pts
98Warren County2.70 pts
99Bremer County2.5-0.3 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties?period=2023. 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), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties?period=2023.

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), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2023,
  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), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties?period=2023. 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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), 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/iowa-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

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

Davis County, with 20.3% in 2023, according to the U.S. Census Bureau.

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

Bremer County, with 2.5% in 2023.

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