Top 5 | 6-25 | 26-50 | 51 - 75 | Above 75 |
California County Health Rankings are based on data compiled by CountyHealthRankings. The rankings are based on Health Outcome Factors of Length of life and Quality of life. The lower the health outcome score, the higher the rank. The healthiest county in California is Marin. The unhealthiest county in California is Modoc.
| Health Rank | County | Health Outcome Value |
|---|---|---|
| 1 | Marin County | -1.30000000 |
| 2 | San Mateo County | -1.21000000 |
| 3 | Santa Clara County | -1.19000000 |
| 4 | Orange County | -0.94000000 |
| 5 | Placer County | -0.91000000 |
| 6 | Sonoma County | -0.86000000 |
| 7 | Napa County | -0.77000000 |
| 8 | Ventura County | -0.73000000 |
| 9 | El Dorado County | -0.70000000 |
| 10 | San Francisco County | -0.67000000 |
| 11 | San Luis Obispo County | -0.60000000 |
| 12 | Yolo County | -0.60000000 |
| 13 | Santa Cruz County | -0.59000000 |
| 14 | San Diego County | -0.56000000 |
| 15 | Tuolumne County | -0.56000000 |
| 16 | Santa Barbara County | -0.56000000 |
| 17 | Nevada County | -0.53000000 |
| 18 | Contra Costa County | -0.51000000 |
| 19 | Alameda County | -0.49000000 |
| 20 | Mono County | -0.48000000 |
| 21 | Amador County | -0.42000000 |
| 22 | Monterey County | -0.38000000 |
| 23 | Calaveras County | -0.38000000 |
| 24 | San Benito County | -0.37000000 |
| 25 | Los Angeles County | -0.08000000 |
| 26 | Sierra County | -0.07000000 |
| 27 | Sutter County | -0.07000000 |
| 28 | Solano County | -0.02000000 |
| 29 | Riverside County | 0.04000000 |
| 30 | Mariposa County | 0.12000000 |
| 31 | Lassen County | 0.12000000 |
| 32 | Sacramento County | 0.12000000 |
| 33 | Imperial County | 0.18000000 |
| 34 | Colusa County | 0.19000000 |
| 35 | Inyo County | 0.27000000 |
| 36 | Kings County | 0.35000000 |
| 37 | Tehama County | 0.36000000 |
| 38 | Butte County | 0.36000000 |
| 39 | Glenn County | 0.41000000 |
| 40 | Mendocino County | 0.48000000 |
| 41 | San Joaquin County | 0.48000000 |
| 42 | San Bernardino County | 0.49000000 |
| 43 | Humboldt County | 0.49000000 |
| 44 | Del Norte County | 0.50000000 |
| 45 | Stanislaus County | 0.52000000 |
| 46 | Yuba County | 0.56000000 |
| 47 | Madera County | 0.61000000 |
| 48 | Plumas County | 0.63000000 |
| 49 | Merced County | 0.66000000 |
| 50 | Shasta County | 0.75000000 |
| 51 | Tulare County | 0.82000000 |
| 52 | Kern County | 0.82000000 |
| 53 | Fresno County | 0.89000000 |
| 54 | Trinity County | 1.10000000 |
| 55 | Siskiyou County | 1.32000000 |
| 56 | Lake County | 1.46000000 |
| 57 | Modoc County | 1.50000000 |