countyscore

Health · California

Healthiest Counties in California 2026

Ranked by life expectancy, uninsured rates, and health care access.

Top 10 — Health in California

Score reflects health only — not overall county quality.

1Marin County, CA
97.6
2San Francisco County, CA
97.5
3San Mateo County, CA
96.6
4Placer County, CA
96
5Santa Clara County, CA
94.1
6El Dorado County, CA
94
7Alameda County, CA
92.5
8Contra Costa County, CA
89.4
9Sonoma County, CA
86.9
10San Luis Obispo County, CA
83.1

All California Counties — Health Rankings

58 counties ranked by health score. Overall Score shown for context.

#CountyHealth ScoreOverall Score
1Marin County, CA
97.6
47.4
2San Francisco County, CA
97.5
43.6
3San Mateo County, CA
96.6
47.6
4Placer County, CA
96
46.5
5Santa Clara County, CA
94.1
42.2
6El Dorado County, CA
94
49.8
7Alameda County, CA
92.5
40.6
8Contra Costa County, CA
89.4
40.1
9Sonoma County, CA
86.9
44.8
10San Luis Obispo County, CA
83.1
42.9
11Santa Cruz County, CA
82.5
41.6
12Alpine County, CA
82.4
51.2
13Amador County, CA
81.2
41.9
14Plumas County, CA
81.1
40.9
15Sierra County, CA
80.7
52.4
16Nevada County, CA
80.6
45.2
17Orange County, CA
79.9
44.3
18San Diego County, CA
78.7
42.3
19Solano County, CA
78.4
36.4
20Tuolumne County, CA
76.3
41.7
21Yolo County, CA
76.1
38
22San Benito County, CA
74.5
43.3
23Calaveras County, CA
74.3
43
24Napa County, CA
73.3
43.7
25Sacramento County, CA
73.3
38.3
26Mono County, CA
71.8
38.5
27Santa Barbara County, CA
71.7
43.1
28Ventura County, CA
71.2
44.3
29Inyo County, CA
67.9
41
30Mariposa County, CA
67.1
43.9
31Trinity County, CA
67
48.3
32Riverside County, CA
64
37.1
33Los Angeles County, CA
63.1
36.9
34Shasta County, CA
60.6
52.3
35Butte County, CA
59.2
39.3
36Humboldt County, CA
58.2
40
37Stanislaus County, CA
56.5
35.6
38San Joaquin County, CA
56.3
33.1
39Lassen County, CA
55
40.4
40Yuba County, CA
53.5
37.7
41Modoc County, CA
52.8
49.6
42Mendocino County, CA
52
44.1
43Colusa County, CA
51.3
41.8
44Lake County, CA
51.3
31.6
45Monterey County, CA
51.3
39
46Sutter County, CA
50.5
35
47Tehama County, CA
49
36.7
48Kings County, CA
48.4
38.2
49Fresno County, CA
46.6
33
50Siskiyou County, CA
46.4
37.9
51San Bernardino County, CA
45.8
33.7
52Madera County, CA
42.5
35.5
53Glenn County, CA
41.7
41.8
54Imperial County, CA
40.3
33.7
55Merced County, CA
39.9
35.3
56Kern County, CA
38.6
27.8
57Tulare County, CA
37.8
35.2
58Del Norte County, CA
37.5
39.9

Explore More

Best overall counties in CaliforniaFull Health data on HealthByCounty