Counties in Idaho by uninsured rate, under 19 (US model-based estimate)

Clark County had the highest uninsured rate, under 19 (US model-based estimate) of 44 counties in 2018, at 14.3%. Ada County had the lowest, at 4.4%. The median was 7.4% and the figure for Idaho was 6.1%. Source: the U.S. Census Bureau.

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Highest14.3Clark County
Lowest4.4Ada County
Median7.444 counties
Idaho6.1History

Map of counties, 2018

Ada County: 4.4 %Adams County: 8.7 %Bannock County: 6.4 %Bear Lake County: 6.2 %Benewah County: 7.3 %Bingham County: 7.1 %Blaine County: 10.3 %Boise County: 7.3 %Bonner County: 7.5 %Bonneville County: 4.7 %Boundary County: 9 %Butte County: 7.8 %Camas County: 8.7 %Canyon County: 6.1 %Caribou County: 6.2 %Cassia County: 8.1 %Clark County: 14.3 %Clearwater County: 6.4 %Custer County: 8 %Elmore County: 5.8 %Franklin County: 7.7 %Fremont County: 7.3 %Gem County: 7.8 %Gooding County: 9.4 %Idaho County: 8.8 %Jefferson County: 7.1 %Jerome County: 10.1 %Kootenai County: 5.8 %Latah County: 6 %Lemhi County: 6.6 %Lewis County: 6.8 %Lincoln County: 9.6 %Madison County: 4.9 %Minidoka County: 9 %Nez Perce County: 5.9 %Oneida County: 8 %Owyhee County: 11.1 %Payette County: 6.7 %Power County: 8.2 %Shoshone County: 6.4 %Teton County: 9.7 %Twin Falls County: 7.2 %Valley County: 8 %Washington County: 8.2 %
  • Under 6.1
  • 6.1 to 6.7
  • 6.7 to 7.4
  • 7.4 to 8.1
  • 8.1 to 9
  • 9 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Clark County: 14.3 %Clark County14.3Owyhee County: 11.1 %Owyhee County11.1Blaine County: 10.3 %Blaine County10.3Jerome County: 10.1 %Jerome County10.1Teton County: 9.7 %Teton County9.7Lincoln County: 9.6 %Lincoln County9.6Gooding County: 9.4 %Gooding County9.4Boundary County: 9 %Boundary County9Minidoka County: 9 %Minidoka County9Idaho County: 8.8 %Idaho County8.8Adams County: 8.7 %Adams County8.7Camas County: 8.7 %Camas County8.7Power County: 8.2 %Power County8.2Washington County: 8.2 %Washington County8.2Cassia County: 8.1 %Cassia County8.1Custer County: 8 %Custer County8Oneida County: 8 %Oneida County8Valley County: 8 %Valley County8Butte County: 7.8 %Butte County7.8Gem County: 7.8 %Gem County7.8Franklin County: 7.7 %Franklin County7.7Bonner County: 7.5 %Bonner County7.5Benewah County: 7.3 %Benewah County7.3Boise County: 7.3 %Boise County7.3Fremont County: 7.3 %Fremont County7.3Twin Falls County: 7.2 %Twin Falls County7.2Bingham County: 7.1 %Bingham County7.1Jefferson County: 7.1 %Jefferson County7.1Lewis County: 6.8 %Lewis County6.8Payette County: 6.7 %Payette County6.7Lemhi County: 6.6 %Lemhi County6.6Bannock County: 6.4 %Bannock County6.4Clearwater County: 6.4 %Clearwater County6.4Shoshone County: 6.4 %Shoshone County6.4Bear Lake County: 6.2 %Bear Lake County6.2Caribou County: 6.2 %Caribou County6.2Canyon County: 6.1 %Canyon County6.1Latah County: 6 %Latah County6Nez Perce County: 5.9 %Nez Perce County5.9Elmore County: 5.8 %Elmore County5.8Kootenai County: 5.8 %Kootenai County5.8Madison County: 4.9 %Madison County4.9Bonneville County: 4.7 %Bonneville County4.7Ada County: 4.4 %Ada County4.4Clark County: 14.3 %Clark County14.3Owyhee County: 11.1 %Owyhee County11.1Blaine County: 10.3 %Blaine County10.3Jerome County: 10.1 %Jerome County10.1Teton County: 9.7 %Teton County9.7Lincoln County: 9.6 %Lincoln County9.6Gooding County: 9.4 %Gooding County9.4Boundary County: 9 %Boundary County9Minidoka County: 9 %Minidoka County9Idaho County: 8.8 %Idaho County8.8Adams County: 8.7 %Adams County8.7Camas County: 8.7 %Camas County8.7Power County: 8.2 %Power County8.2Washington County: 8.2 %Washington County8.2Cassia County: 8.1 %Cassia County8.1Custer County: 8 %Custer County8Oneida County: 8 %Oneida County8Valley County: 8 %Valley County8Butte County: 7.8 %Butte County7.8Gem County: 7.8 %Gem County7.8Franklin County: 7.7 %Franklin County7.7Bonner County: 7.5 %Bonner County7.5Benewah County: 7.3 %Benewah County7.3Boise County: 7.3 %Boise County7.3Fremont County: 7.3 %Fremont County7.3Twin Falls County: 7.2 %Twin Falls County7.2Bingham County: 7.1 %Bingham County7.1Jefferson County: 7.1 %Jefferson County7.1Lewis County: 6.8 %Lewis County6.8Payette County: 6.7 %Payette County6.7Lemhi County: 6.6 %Lemhi County6.6Bannock County: 6.4 %Bannock County6.4Clearwater County: 6.4 %Clearwater County6.4Shoshone County: 6.4 %Shoshone County6.4Bear Lake County: 6.2 %Bear Lake County6.2Caribou County: 6.2 %Caribou County6.2Canyon County: 6.1 %Canyon County6.1Latah County: 6 %Latah County6Nez Perce County: 5.9 %Nez Perce County5.9Elmore County: 5.8 %Elmore County5.8Kootenai County: 5.8 %Kootenai County5.8Madison County: 4.9 %Madison County4.9Bonneville County: 4.7 %Bonneville County4.7Ada County: 4.4 %Ada County4.4
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Clark County14.3+1.4 pts
2Owyhee County11.1+2 pts
3Blaine County10.3+1.4 pts
4Jerome County10.1+3.3 pts
5Teton County9.7+1.9 pts
6Lincoln County9.6+1.9 pts
7Gooding County9.4+2.7 pts
8Boundary County9+0.3 pts
8Minidoka County9+3.3 pts
10Idaho County8.8+1.9 pts
11Adams County8.7+1.9 pts
11Camas County8.7-0.4 pts
13Power County8.2+2.3 pts
13Washington County8.2+1.9 pts
15Cassia County8.1+2.9 pts
16Custer County8+1.9 pts
16Oneida County8+2.4 pts
16Valley County8+2.1 pts
19Butte County7.8+1.9 pts
19Gem County7.8+2.6 pts
21Franklin County7.7+3.1 pts
22Bonner County7.5+2.1 pts
23Benewah County7.3+1.2 pts
23Boise County7.3+2.2 pts
23Fremont County7.3+1.8 pts
26Twin Falls County7.2+2.2 pts
27Bingham County7.1+1.2 pts
27Jefferson County7.1+2.3 pts
29Lewis County6.8+1.2 pts
30Payette County6.7+1.8 pts
31Lemhi County6.6+2 pts
32Bannock County6.4+2.8 pts
32Clearwater County6.4+1.8 pts
32Shoshone County6.4+1.8 pts
35Bear Lake County6.2+1.8 pts
35Caribou County6.2+2.4 pts
37Canyon County6.1+2.1 pts
38Latah County6+2.5 pts
39Nez Perce County5.9+1.9 pts
40Elmore County5.8+1.1 pts
40Kootenai County5.8+2.1 pts
42Madison County4.9+1.8 pts
43Bonneville County4.7+1.4 pts
44Ada County4.4+1.2 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. 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). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties (Counties in Idaho by uninsured rate, under 19 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Idaho by uninsured rate, under 19 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/idaho-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Counties in Idaho by uninsured rate, under 19 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/idaho-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Idaho by uninsured rate, under 19 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/idaho-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_idaho_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Idaho by uninsured rate, under 19 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/idaho-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Idaho by uninsured rate, under 19 (US model-based estimate), 2018
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/idaho-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/idaho-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Clark County, with 14.3% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Ada County, with 4.4% in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in Idaho: more rankings