Data / Rankings / Uninsured rate, under 19 (US model-based estimate) / Counties in California

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

Modoc County had the highest uninsured rate, under 19 (US model-based estimate) of 58 counties in 2013, at 14.3%. Santa Clara County had the lowest, at 5.1%. The median was 8.3% and the figure for California was 7.9%. Source: the U.S. Census Bureau.

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Highest14.3Modoc County
Lowest5.1Santa Clara County
Median8.358 counties
California7.9History

Map of counties, 2013

Alameda County: 6 %Alpine County: 11.6 %Amador County: 8.8 %Butte County: 7.1 %Calaveras County: 9.1 %Colusa County: 10.7 %Contra Costa County: 6.1 %Del Norte County: 7.7 %El Dorado County: 6.7 %Fresno County: 6.9 %Glenn County: 10.2 %Humboldt County: 8.5 %Imperial County: 9.1 %Inyo County: 10.1 %Kern County: 7.6 %Kings County: 8.1 %Lake County: 9.5 %Lassen County: 6.7 %Los Angeles County: 8.4 %Madera County: 9.3 %Marin County: 6 %Mariposa County: 9.2 %Mendocino County: 11 %Merced County: 7.3 %Modoc County: 14.3 %Mono County: 12.2 %Monterey County: 10.1 %Napa County: 8.2 %Nevada County: 10.1 %Orange County: 8.1 %Placer County: 6.6 %Plumas County: 10.5 %Riverside County: 10.1 %Sacramento County: 6.5 %San Benito County: 9 %San Bernardino County: 8.6 %San Diego County: 8.3 %San Francisco County: 5.3 %San Joaquin County: 7.5 %San Luis Obispo County: 8 %San Mateo County: 6.2 %Santa Barbara County: 9.7 %Santa Clara County: 5.1 %Santa Cruz County: 8.1 %Shasta County: 7.9 %Sierra County: 13.9 %Siskiyou County: 11 %Solano County: 6.3 %Sonoma County: 8.1 %Stanislaus County: 8.1 %Sutter County: 9.3 %Tehama County: 8.7 %Trinity County: 12.3 %Tulare County: 7.4 %Tuolumne County: 8.6 %Ventura County: 8 %Yolo County: 8 %Yuba County: 7.6 %
  • Under 6.7
  • 6.7 to 7.9
  • 7.9 to 8.3
  • 8.3 to 9.1
  • 9.1 to 10
  • 10 and over
%, 2013. 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, 2013

Modoc County: 14.3 %Modoc County14.3Sierra County: 13.9 %Sierra County13.9Trinity County: 12.3 %Trinity County12.3Mono County: 12.2 %Mono County12.2Alpine County: 11.6 %Alpine County11.6Mendocino County: 11 %Mendocino County11Siskiyou County: 11 %Siskiyou County11Colusa County: 10.7 %Colusa County10.7Plumas County: 10.5 %Plumas County10.5Glenn County: 10.2 %Glenn County10.2Inyo County: 10.1 %Inyo County10.1Monterey County: 10.1 %Monterey County10.1Nevada County: 10.1 %Nevada County10.1Riverside County: 10.1 %Riverside County10.1Santa Barbara County: 9.7 %Santa Barbara County9.7Lake County: 9.5 %Lake County9.5Madera County: 9.3 %Madera County9.3Sutter County: 9.3 %Sutter County9.3Mariposa County: 9.2 %Mariposa County9.2Calaveras County: 9.1 %Calaveras County9.1Imperial County: 9.1 %Imperial County9.1San Benito County: 9 %San Benito County9Amador County: 8.8 %Amador County8.8Tehama County: 8.7 %Tehama County8.7San Bernardino County: 8.6 %San Bernardino County8.6Tuolumne County: 8.6 %Tuolumne County8.6Humboldt County: 8.5 %Humboldt County8.5Los Angeles County: 8.4 %Los Angeles County8.4San Diego County: 8.3 %San Diego County8.3Napa County: 8.2 %Napa County8.2Kings County: 8.1 %Kings County8.1Orange County: 8.1 %Orange County8.1Santa Cruz County: 8.1 %Santa Cruz County8.1Sonoma County: 8.1 %Sonoma County8.1Stanislaus County: 8.1 %Stanislaus County8.1San Luis Obispo County: 8 %San Luis Obispo County8Ventura County: 8 %Ventura County8Yolo County: 8 %Yolo County8Shasta County: 7.9 %Shasta County7.9Del Norte County: 7.7 %Del Norte County7.7Kern County: 7.6 %Kern County7.6Yuba County: 7.6 %Yuba County7.6San Joaquin County: 7.5 %San Joaquin County7.5Tulare County: 7.4 %Tulare County7.4Merced County: 7.3 %Merced County7.3Butte County: 7.1 %Butte County7.1Fresno County: 6.9 %Fresno County6.9El Dorado County: 6.7 %El Dorado County6.7Lassen County: 6.7 %Lassen County6.7Placer County: 6.6 %Placer County6.6Sacramento County: 6.5 %Sacramento County6.5Solano County: 6.3 %Solano County6.3San Mateo County: 6.2 %San Mateo County6.2Contra Costa County: 6.1 %Contra Costa County6.1Alameda County: 6 %Alameda County6Marin County: 6 %Marin County6San Francisco County: 5.3 %San Francisco County5.3Santa Clara County: 5.1 %Santa Clara County5.1Modoc County: 14.3 %Modoc County14.3Sierra County: 13.9 %Sierra County13.9Trinity County: 12.3 %Trinity County12.3Mono County: 12.2 %Mono County12.2Alpine County: 11.6 %Alpine County11.6Mendocino County: 11 %Mendocino County11Siskiyou County: 11 %Siskiyou County11Colusa County: 10.7 %Colusa County10.7Plumas County: 10.5 %Plumas County10.5Glenn County: 10.2 %Glenn County10.2Inyo County: 10.1 %Inyo County10.1Monterey County: 10.1 %Monterey County10.1Nevada County: 10.1 %Nevada County10.1Riverside County: 10.1 %Riverside County10.1Santa Barbara County: 9.7 %Santa Barbara County9.7Lake County: 9.5 %Lake County9.5Madera County: 9.3 %Madera County9.3Sutter County: 9.3 %Sutter County9.3Mariposa County: 9.2 %Mariposa County9.2Calaveras County: 9.1 %Calaveras County9.1Imperial County: 9.1 %Imperial County9.1San Benito County: 9 %San Benito County9Amador County: 8.8 %Amador County8.8Tehama County: 8.7 %Tehama County8.7San Bernardino County: 8.6 %San Bernardino County8.6Tuolumne County: 8.6 %Tuolumne County8.6Humboldt County: 8.5 %Humboldt County8.5Los Angeles County: 8.4 %Los Angeles County8.4San Diego County: 8.3 %San Diego County8.3Napa County: 8.2 %Napa County8.2Kings County: 8.1 %Kings County8.1Orange County: 8.1 %Orange County8.1Santa Cruz County: 8.1 %Santa Cruz County8.1Sonoma County: 8.1 %Sonoma County8.1Stanislaus County: 8.1 %Stanislaus County8.1San Luis Obispo County: 8 %San Luis Obispo County8Ventura County: 8 %Ventura County8Yolo County: 8 %Yolo County8Shasta County: 7.9 %Shasta County7.9Del Norte County: 7.7 %Del Norte County7.7Kern County: 7.6 %Kern County7.6Yuba County: 7.6 %Yuba County7.6San Joaquin County: 7.5 %San Joaquin County7.5Tulare County: 7.4 %Tulare County7.4Merced County: 7.3 %Merced County7.3Butte County: 7.1 %Butte County7.1Fresno County: 6.9 %Fresno County6.9El Dorado County: 6.7 %El Dorado County6.7Lassen County: 6.7 %Lassen County6.7Placer County: 6.6 %Placer County6.6Sacramento County: 6.5 %Sacramento County6.5Solano County: 6.3 %Solano County6.3San Mateo County: 6.2 %San Mateo County6.2Contra Costa County: 6.1 %Contra Costa County6.1Alameda County: 6 %Alameda County6Marin County: 6 %Marin County6San Francisco County: 5.3 %San Francisco County5.3Santa Clara County: 5.1 %Santa Clara County5.1
%. 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

RankCounties2013 (%)Change on 2012
1Modoc County14.3+2.4 pts
2Sierra County13.9+1.2 pts
3Trinity County12.3+2.1 pts
4Mono County12.2+1.3 pts
5Alpine County11.6+1.3 pts
6Mendocino County11+1 pts
6Siskiyou County11+1.1 pts
8Colusa County10.7+0.4 pts
9Plumas County10.5+0.4 pts
10Glenn County10.2-0.5 pts
11Inyo County10.1-1.1 pts
11Monterey County10.1+1.3 pts
11Nevada County10.1+1.9 pts
11Riverside County10.10 pts
15Santa Barbara County9.7-0.2 pts
16Lake County9.5-0.2 pts
17Madera County9.3-1.1 pts
17Sutter County9.3+0.4 pts
19Mariposa County9.2-0.8 pts
20Calaveras County9.1+0.3 pts
20Imperial County9.1-0.5 pts
22San Benito County9+0.2 pts
23Amador County8.8+0.9 pts
24Tehama County8.7-0.9 pts
25San Bernardino County8.6-0.4 pts
25Tuolumne County8.6+0.6 pts
27Humboldt County8.5-1.4 pts
28Los Angeles County8.4-1.1 pts
29San Diego County8.3-0.6 pts
30Napa County8.2-0.4 pts
31Kings County8.1-0.8 pts
31Orange County8.1+0.4 pts
31Santa Cruz County8.1+0.2 pts
31Sonoma County8.1-0.2 pts
31Stanislaus County8.1+1.2 pts
36San Luis Obispo County8-0.1 pts
36Ventura County8+1.4 pts
36Yolo County8+1.7 pts
39Shasta County7.9-0.8 pts
40Del Norte County7.7-1.4 pts
41Kern County7.6-1.5 pts
41Yuba County7.6+0.1 pts
43San Joaquin County7.5-0.7 pts
44Tulare County7.4-2.3 pts
45Merced County7.30 pts
46Butte County7.1-0.8 pts
47Fresno County6.9-0.9 pts
48El Dorado County6.7+0.3 pts
48Lassen County6.7+0.1 pts
50Placer County6.60 pts
51Sacramento County6.5-0.5 pts
52Solano County6.3-0.2 pts
53San Mateo County6.2+0.4 pts
54Contra Costa County6.1-1 pts
55Alameda County6-0.1 pts
55Marin County6+0.4 pts
57San Francisco County5.3-0.2 pts
58Santa Clara County5.1-0.6 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-2013-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), 2013) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-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), 2013. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2013. 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), 2013. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2013.

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), 2013 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2013 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_california_by_2013,
  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), 2013}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2013. 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-2013-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), 2013
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-2013-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2013
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/california-counties?period=2013.
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-2013-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)?

Modoc County, with 14.3% in 2013, according to the U.S. Census Bureau.

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

Santa Clara County, with 5.1% in 2013.

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