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

Sierra County had the highest uninsured rate, under 19 (US model-based estimate) of 58 counties in 2014, at 10.4%. Santa Clara County had the lowest, at 3.9%. The median was 6.4% and the figure for California was 5.8%. Source: the U.S. Census Bureau.

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Highest10.4Sierra County
Median6.458 counties
California5.8History

Map of counties, 2014

Alameda County: 4.4 %Alpine County: 8.7 %Amador County: 6.9 %Butte County: 5.9 %Calaveras County: 6.6 %Colusa County: 8.2 %Contra Costa County: 4.2 %Del Norte County: 6.2 %El Dorado County: 5.2 %Fresno County: 5.1 %Glenn County: 8.7 %Humboldt County: 6.4 %Imperial County: 6.5 %Inyo County: 8.5 %Kern County: 5.4 %Kings County: 5.9 %Lake County: 7.9 %Lassen County: 5.2 %Los Angeles County: 6.1 %Madera County: 6.7 %Marin County: 4.7 %Mariposa County: 7.6 %Mendocino County: 8.1 %Merced County: 5.6 %Modoc County: 8.9 %Mono County: 9.9 %Monterey County: 8.1 %Napa County: 6.9 %Nevada County: 6.9 %Orange County: 5.5 %Placer County: 4.2 %Plumas County: 7.6 %Riverside County: 8.1 %Sacramento County: 4.8 %San Benito County: 6.6 %San Bernardino County: 5.5 %San Diego County: 6.6 %San Francisco County: 4 %San Joaquin County: 5 %San Luis Obispo County: 7.7 %San Mateo County: 4.5 %Santa Barbara County: 6.8 %Santa Clara County: 3.9 %Santa Cruz County: 5.7 %Shasta County: 6.2 %Sierra County: 10.4 %Siskiyou County: 8.2 %Solano County: 4.6 %Sonoma County: 5.8 %Stanislaus County: 5.4 %Sutter County: 6.8 %Tehama County: 6.7 %Trinity County: 9.7 %Tulare County: 5.2 %Tuolumne County: 6.4 %Ventura County: 6.2 %Yolo County: 5.8 %Yuba County: 6.3 %
  • Under 5
  • 5 to 5.7
  • 5.7 to 6.3
  • 6.3 to 6.8
  • 6.8 to 8.1
  • 8.1 and over
%, 2014. 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, 2014

Sierra County: 10.4 %Sierra County10.4Mono County: 9.9 %Mono County9.9Trinity County: 9.7 %Trinity County9.7Modoc County: 8.9 %Modoc County8.9Alpine County: 8.7 %Alpine County8.7Glenn County: 8.7 %Glenn County8.7Inyo County: 8.5 %Inyo County8.5Colusa County: 8.2 %Colusa County8.2Siskiyou County: 8.2 %Siskiyou County8.2Mendocino County: 8.1 %Mendocino County8.1Monterey County: 8.1 %Monterey County8.1Riverside County: 8.1 %Riverside County8.1Lake County: 7.9 %Lake County7.9San Luis Obispo County: 7.7 %San Luis Obispo County7.7Mariposa County: 7.6 %Mariposa County7.6Plumas County: 7.6 %Plumas County7.6Amador County: 6.9 %Amador County6.9Napa County: 6.9 %Napa County6.9Nevada County: 6.9 %Nevada County6.9Santa Barbara County: 6.8 %Santa Barbara County6.8Sutter County: 6.8 %Sutter County6.8Madera County: 6.7 %Madera County6.7Tehama County: 6.7 %Tehama County6.7Calaveras County: 6.6 %Calaveras County6.6San Benito County: 6.6 %San Benito County6.6San Diego County: 6.6 %San Diego County6.6Imperial County: 6.5 %Imperial County6.5Humboldt County: 6.4 %Humboldt County6.4Tuolumne County: 6.4 %Tuolumne County6.4Yuba County: 6.3 %Yuba County6.3Del Norte County: 6.2 %Del Norte County6.2Shasta County: 6.2 %Shasta County6.2Ventura County: 6.2 %Ventura County6.2Los Angeles County: 6.1 %Los Angeles County6.1Butte County: 5.9 %Butte County5.9Kings County: 5.9 %Kings County5.9Sonoma County: 5.8 %Sonoma County5.8Yolo County: 5.8 %Yolo County5.8Santa Cruz County: 5.7 %Santa Cruz County5.7Merced County: 5.6 %Merced County5.6Orange County: 5.5 %Orange County5.5San Bernardino County: 5.5 %San Bernardino County5.5Kern County: 5.4 %Kern County5.4Stanislaus County: 5.4 %Stanislaus County5.4El Dorado County: 5.2 %El Dorado County5.2Lassen County: 5.2 %Lassen County5.2Tulare County: 5.2 %Tulare County5.2Fresno County: 5.1 %Fresno County5.1San Joaquin County: 5 %San Joaquin County5Sacramento County: 4.8 %Sacramento County4.8Marin County: 4.7 %Marin County4.7Solano County: 4.6 %Solano County4.6San Mateo County: 4.5 %San Mateo County4.5Alameda County: 4.4 %Alameda County4.4Contra Costa County: 4.2 %Contra Costa County4.2Placer County: 4.2 %Placer County4.2San Francisco County: 4 %San Francisco County4Santa Clara County: 3.9 %Santa Clara County3.9Sierra County: 10.4 %Sierra County10.4Mono County: 9.9 %Mono County9.9Trinity County: 9.7 %Trinity County9.7Modoc County: 8.9 %Modoc County8.9Alpine County: 8.7 %Alpine County8.7Glenn County: 8.7 %Glenn County8.7Inyo County: 8.5 %Inyo County8.5Colusa County: 8.2 %Colusa County8.2Siskiyou County: 8.2 %Siskiyou County8.2Mendocino County: 8.1 %Mendocino County8.1Monterey County: 8.1 %Monterey County8.1Riverside County: 8.1 %Riverside County8.1Lake County: 7.9 %Lake County7.9San Luis Obispo County: 7.7 %San Luis Obispo County7.7Mariposa County: 7.6 %Mariposa County7.6Plumas County: 7.6 %Plumas County7.6Amador County: 6.9 %Amador County6.9Napa County: 6.9 %Napa County6.9Nevada County: 6.9 %Nevada County6.9Santa Barbara County: 6.8 %Santa Barbara County6.8Sutter County: 6.8 %Sutter County6.8Madera County: 6.7 %Madera County6.7Tehama County: 6.7 %Tehama County6.7Calaveras County: 6.6 %Calaveras County6.6San Benito County: 6.6 %San Benito County6.6San Diego County: 6.6 %San Diego County6.6Imperial County: 6.5 %Imperial County6.5Humboldt County: 6.4 %Humboldt County6.4Tuolumne County: 6.4 %Tuolumne County6.4Yuba County: 6.3 %Yuba County6.3Del Norte County: 6.2 %Del Norte County6.2Shasta County: 6.2 %Shasta County6.2Ventura County: 6.2 %Ventura County6.2Los Angeles County: 6.1 %Los Angeles County6.1Butte County: 5.9 %Butte County5.9Kings County: 5.9 %Kings County5.9Sonoma County: 5.8 %Sonoma County5.8Yolo County: 5.8 %Yolo County5.8Santa Cruz County: 5.7 %Santa Cruz County5.7Merced County: 5.6 %Merced County5.6Orange County: 5.5 %Orange County5.5San Bernardino County: 5.5 %San Bernardino County5.5Kern County: 5.4 %Kern County5.4Stanislaus County: 5.4 %Stanislaus County5.4El Dorado County: 5.2 %El Dorado County5.2Lassen County: 5.2 %Lassen County5.2Tulare County: 5.2 %Tulare County5.2Fresno County: 5.1 %Fresno County5.1San Joaquin County: 5 %San Joaquin County5Sacramento County: 4.8 %Sacramento County4.8Marin County: 4.7 %Marin County4.7Solano County: 4.6 %Solano County4.6San Mateo County: 4.5 %San Mateo County4.5Alameda County: 4.4 %Alameda County4.4Contra Costa County: 4.2 %Contra Costa County4.2Placer County: 4.2 %Placer County4.2San Francisco County: 4 %San Francisco County4Santa Clara County: 3.9 %Santa Clara County3.9
%. 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

RankCounties2014 (%)Change on 2013
1Sierra County10.4-3.5 pts
2Mono County9.9-2.3 pts
3Trinity County9.7-2.6 pts
4Modoc County8.9-5.4 pts
5Alpine County8.7-2.9 pts
5Glenn County8.7-1.5 pts
7Inyo County8.5-1.6 pts
8Colusa County8.2-2.5 pts
8Siskiyou County8.2-2.8 pts
10Mendocino County8.1-2.9 pts
10Monterey County8.1-2 pts
10Riverside County8.1-2 pts
13Lake County7.9-1.6 pts
14San Luis Obispo County7.7-0.3 pts
15Mariposa County7.6-1.6 pts
15Plumas County7.6-2.9 pts
17Amador County6.9-1.9 pts
17Napa County6.9-1.3 pts
17Nevada County6.9-3.2 pts
20Santa Barbara County6.8-2.9 pts
20Sutter County6.8-2.5 pts
22Madera County6.7-2.6 pts
22Tehama County6.7-2 pts
24Calaveras County6.6-2.5 pts
24San Benito County6.6-2.4 pts
24San Diego County6.6-1.7 pts
27Imperial County6.5-2.6 pts
28Humboldt County6.4-2.1 pts
28Tuolumne County6.4-2.2 pts
30Yuba County6.3-1.3 pts
31Del Norte County6.2-1.5 pts
31Shasta County6.2-1.7 pts
31Ventura County6.2-1.8 pts
34Los Angeles County6.1-2.3 pts
35Butte County5.9-1.2 pts
35Kings County5.9-2.2 pts
37Sonoma County5.8-2.3 pts
37Yolo County5.8-2.2 pts
39Santa Cruz County5.7-2.4 pts
40Merced County5.6-1.7 pts
41Orange County5.5-2.6 pts
41San Bernardino County5.5-3.1 pts
43Kern County5.4-2.2 pts
43Stanislaus County5.4-2.7 pts
45El Dorado County5.2-1.5 pts
45Lassen County5.2-1.5 pts
45Tulare County5.2-2.2 pts
48Fresno County5.1-1.8 pts
49San Joaquin County5-2.5 pts
50Sacramento County4.8-1.7 pts
51Marin County4.7-1.3 pts
52Solano County4.6-1.7 pts
53San Mateo County4.5-1.7 pts
54Alameda County4.4-1.6 pts
55Contra Costa County4.2-1.9 pts
55Placer County4.2-2.4 pts
57San Francisco County4-1.3 pts
58Santa Clara County3.9-1.2 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-2014-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 California by uninsured rate, under 19 (US model-based estimate), 2014) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-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 California by uninsured rate, under 19 (US model-based estimate), 2014. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2014. 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 California by uninsured rate, under 19 (US model-based estimate), 2014. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2014.

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 California by uninsured rate, under 19 (US model-based estimate), 2014 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_california_by_2014,
  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 California by uninsured rate, under 19 (US model-based estimate), 2014}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2014-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2014. 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-2014-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 California by uninsured rate, under 19 (US model-based estimate), 2014
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-2014-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2014.
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-2014-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)?

Sierra County, with 10.4% in 2014, according to the U.S. Census Bureau.

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

Santa Clara County, with 3.9% in 2014.

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 California: more rankings