# Counties in California by uninsured rate, ages 35 to 64 (US, ACS), 2024

All 58 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `uninsured_rate_35_64`
- Unit: %
- Definition: 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.
- Source: 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/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat)
- Retrieved: 2026-10-12
- Citation: 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/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/uninsured-rate-ages-35-64/california-counties

| Rank | Place | % |
|---:|---|---:|
| 1 | Santa Barbara County | 12.9 |
| 2 | Monterey County | 12.6 |
| 3 | Tulare County | 12.2 |
| 4 | Trinity County | 11.9 |
| 5 | Mono County | 11.8 |
| 6 | Merced County | 11.4 |
| 7 | Kern County | 11.2 |
| 8 | Mendocino County | 11.1 |
| 9 | San Bernardino County | 10.9 |
| 10 | Plumas County | 10.9 |
| 11 | Los Angeles County | 10.8 |
| 12 | Madera County | 10.8 |
| 13 | Glenn County | 10.5 |
| 14 | Riverside County | 10.4 |
| 15 | Imperial County | 10.1 |
| 16 | Ventura County | 10 |
| 17 | Kings County | 9.8 |
| 18 | Tehama County | 9.5 |
| 19 | Colusa County | 9.5 |
| 20 | Fresno County | 8.8 |
| 21 | Sutter County | 8.7 |
| 22 | San Benito County | 8.6 |
| 23 | Siskiyou County | 8.6 |
| 24 | Lake County | 8.6 |
| 25 | Orange County | 8.5 |
| 26 | Inyo County | 8.3 |
| 27 | San Diego County | 8.1 |
| 28 | Butte County | 8.1 |
| 28 | Nevada County | 8.1 |
| 30 | San Luis Obispo County | 8 |
| 31 | Stanislaus County | 7.9 |
| 32 | San Joaquin County | 7.8 |
| 33 | Modoc County | 7.7 |
| 34 | Sierra County | 7.7 |
| 35 | Yuba County | 7.7 |
| 36 | Shasta County | 7.6 |
| 37 | Lassen County | 7.6 |
| 37 | Napa County | 7.6 |
| 39 | Amador County | 7.6 |
| 39 | Calaveras County | 7.6 |
| 41 | Del Norte County | 7.4 |
| 42 | Tuolumne County | 7.4 |
| 43 | Sonoma County | 7.3 |
| 44 | Mariposa County | 7.3 |
| 45 | Santa Cruz County | 6.7 |
| 46 | Humboldt County | 6.3 |
| 47 | Sacramento County | 5.9 |
| 48 | Yolo County | 5.9 |
| 49 | Solano County | 5.5 |
| 50 | Contra Costa County | 5.4 |
| 51 | El Dorado County | 5.2 |
| 52 | Marin County | 5.1 |
| 53 | Santa Clara County | 4.8 |
| 54 | Alameda County | 4.5 |
| 55 | San Mateo County | 4.3 |
| 56 | San Francisco County | 4.1 |
| 57 | Placer County | 3.5 |
| 58 | Alpine County | 3 |