Data / Rankings / Uninsured rate, all ages (US) / Counties in Idaho

Counties in Idaho by uninsured rate, all ages (US)

Clark County had the highest uninsured rate, all ages (US) of 44 counties in 2021, at 22.7%. Oneida County had the lowest, at 4.7%. The median was 12% and the figure for Idaho was 10.2%. Source: the U.S. Census Bureau.

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Highest22.7Clark County
Lowest4.7Oneida County
Median1244 counties
Idaho10.2History

Map of counties, 2021

Ada County: 7.4 %Adams County: 11.6 %Bannock County: 8.4 %Bear Lake County: 7.6 %Benewah County: 12.7 %Bingham County: 10.7 %Blaine County: 12.2 %Boise County: 15.7 %Bonner County: 10.3 %Bonneville County: 8.7 %Boundary County: 16.9 %Butte County: 8.5 %Camas County: 13.8 %Canyon County: 12.6 %Caribou County: 11.8 %Cassia County: 11.6 %Clark County: 22.7 %Clearwater County: 13.9 %Custer County: 8.7 %Elmore County: 14.7 %Franklin County: 10.1 %Fremont County: 12.2 %Gem County: 13.8 %Gooding County: 18.2 %Idaho County: 16 %Jefferson County: 9.3 %Jerome County: 16.4 %Kootenai County: 9.9 %Latah County: 7.5 %Lemhi County: 9.1 %Lewis County: 12.4 %Lincoln County: 17.2 %Madison County: 6.6 %Minidoka County: 17.4 %Nez Perce County: 10 %Oneida County: 4.7 %Owyhee County: 21.5 %Payette County: 10.4 %Power County: 13.7 %Shoshone County: 15.8 %Teton County: 13.3 %Twin Falls County: 11.2 %Valley County: 11.6 %Washington County: 15.1 %
  • Under 8.7
  • 8.7 to 10
  • 10 to 12
  • 12 to 14
  • 14 to 16
  • 16 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Clark County: 22.7 %Clark County22.7Owyhee County: 21.5 %Owyhee County21.5Gooding County: 18.2 %Gooding County18.2Minidoka County: 17.4 %Minidoka County17.4Lincoln County: 17.2 %Lincoln County17.2Boundary County: 16.9 %Boundary County16.9Jerome County: 16.4 %Jerome County16.4Idaho County: 16 %Idaho County16Shoshone County: 15.8 %Shoshone County15.8Boise County: 15.7 %Boise County15.7Washington County: 15.1 %Washington County15.1Elmore County: 14.7 %Elmore County14.7Clearwater County: 13.9 %Clearwater County13.9Camas County: 13.8 %Camas County13.8Gem County: 13.8 %Gem County13.8Power County: 13.7 %Power County13.7Teton County: 13.3 %Teton County13.3Benewah County: 12.7 %Benewah County12.7Canyon County: 12.6 %Canyon County12.6Lewis County: 12.4 %Lewis County12.4Fremont County: 12.2 %Fremont County12.2Blaine County: 12.2 %Blaine County12.2Caribou County: 11.8 %Caribou County11.8Adams County: 11.6 %Adams County11.6Cassia County: 11.6 %Cassia County11.6Valley County: 11.6 %Valley County11.6Twin Falls County: 11.2 %Twin Falls County11.2Bingham County: 10.7 %Bingham County10.7Payette County: 10.4 %Payette County10.4Bonner County: 10.3 %Bonner County10.3Franklin County: 10.1 %Franklin County10.1Nez Perce County: 10 %Nez Perce County10Kootenai County: 9.9 %Kootenai County9.9Jefferson County: 9.3 %Jefferson County9.3Lemhi County: 9.1 %Lemhi County9.1Bonneville County: 8.7 %Bonneville County8.7Custer County: 8.7 %Custer County8.7Butte County: 8.5 %Butte County8.5Bannock County: 8.4 %Bannock County8.4Bear Lake County: 7.6 %Bear Lake County7.6Latah County: 7.5 %Latah County7.5Ada County: 7.4 %Ada County7.4Madison County: 6.6 %Madison County6.6Oneida County: 4.7 %Oneida County4.7Clark County: 22.7 %Clark County22.7Owyhee County: 21.5 %Owyhee County21.5Gooding County: 18.2 %Gooding County18.2Minidoka County: 17.4 %Minidoka County17.4Lincoln County: 17.2 %Lincoln County17.2Boundary County: 16.9 %Boundary County16.9Jerome County: 16.4 %Jerome County16.4Idaho County: 16 %Idaho County16Shoshone County: 15.8 %Shoshone County15.8Boise County: 15.7 %Boise County15.7Washington County: 15.1 %Washington County15.1Elmore County: 14.7 %Elmore County14.7Clearwater County: 13.9 %Clearwater County13.9Camas County: 13.8 %Camas County13.8Gem County: 13.8 %Gem County13.8Power County: 13.7 %Power County13.7Teton County: 13.3 %Teton County13.3Benewah County: 12.7 %Benewah County12.7Canyon County: 12.6 %Canyon County12.6Lewis County: 12.4 %Lewis County12.4Fremont County: 12.2 %Fremont County12.2Blaine County: 12.2 %Blaine County12.2Caribou County: 11.8 %Caribou County11.8Adams County: 11.6 %Adams County11.6Cassia County: 11.6 %Cassia County11.6Valley County: 11.6 %Valley County11.6Twin Falls County: 11.2 %Twin Falls County11.2Bingham County: 10.7 %Bingham County10.7Payette County: 10.4 %Payette County10.4Bonner County: 10.3 %Bonner County10.3Franklin County: 10.1 %Franklin County10.1Nez Perce County: 10 %Nez Perce County10Kootenai County: 9.9 %Kootenai County9.9Jefferson County: 9.3 %Jefferson County9.3Lemhi County: 9.1 %Lemhi County9.1Bonneville County: 8.7 %Bonneville County8.7Custer County: 8.7 %Custer County8.7Butte County: 8.5 %Butte County8.5Bannock County: 8.4 %Bannock County8.4Bear Lake County: 7.6 %Bear Lake County7.6Latah County: 7.5 %Latah County7.5Ada County: 7.4 %Ada County7.4Madison County: 6.6 %Madison County6.6Oneida County: 4.7 %Oneida County4.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Clark County22.7
2Owyhee County21.5
3Gooding County18.2
4Minidoka County17.4
5Lincoln County17.2
6Boundary County16.9
7Jerome County16.4
8Idaho County16
9Shoshone County15.8
10Boise County15.7
11Washington County15.1
12Elmore County14.7
13Clearwater County13.9
14Camas County13.8
15Gem County13.8
16Power County13.7
17Teton County13.3
18Benewah County12.7
19Canyon County12.6
20Lewis County12.4
21Fremont County12.2
22Blaine County12.2
23Caribou County11.8
24Adams County11.6
25Cassia County11.6
26Valley County11.6
27Twin Falls County11.2
28Bingham County10.7
29Payette County10.4
30Bonner County10.3
31Franklin County10.1
32Nez Perce County10
33Kootenai County9.9
34Jefferson County9.3
35Lemhi County9.1
36Bonneville County8.7
37Custer County8.7
38Butte County8.5
39Bannock County8.4
40Bear Lake County7.6
41Latah County7.5
42Ada County7.4
43Madison County6.6
44Oneida County4.7

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in Idaho by uninsured rate, all ages (US), 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Idaho by uninsured rate, all ages (US), 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/idaho-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in Idaho by uninsured rate, all ages (US), 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/idaho-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Idaho by uninsured rate, all ages (US), 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/idaho-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_idaho_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Idaho by uninsured rate, all ages (US), 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/idaho-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Idaho by uninsured rate, all ages (US), 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/idaho-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/idaho-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, 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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Questions

Which county has the highest uninsured rate, all ages (US)?

Clark County, with 22.7% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

Oneida County, with 4.7% 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in Idaho: more rankings