| Rank |
County |
Percentage with High School Diploma |
| 1 |
Nevada County, California
|
94.9%
|
| 2 |
Placer County, California
|
93.4%
|
| 3 |
El Dorado County, California
|
93.0%
|
| 4 |
Calaveras County, California
|
92.4%
|
| 5 |
Marin County, California
|
92.0%
|
| 6 |
Alpine County, California
|
92.0%
|
| 7 |
Plumas County, California
|
90.7%
|
| 8 |
Trinity County, California
|
90.3%
|
| 9 |
Humboldt County, California
|
90.2%
|
| 10 |
San Luis Obispo County, California
|
88.9%
|
| 11 |
Siskiyou County, California
|
88.8%
|
| 12 |
Inyo County, California
|
88.8%
|
| 13 |
Mariposa County, California
|
88.7%
|
| 14 |
Contra Costa County, California
|
88.5%
|
| 15 |
San Mateo County, California
|
88.4%
|
| 16 |
Tuolumne County, California
|
88.3%
|
| 17 |
Sierra County, California
|
88.2%
|
| 18 |
Shasta County, California
|
87.6%
|
| 19 |
Amador County, California
|
87.3%
|
| 20 |
Lake County, California
|
87.2%
|
| 21 |
Santa Clara County, California
|
86.5%
|
| 22 |
Sonoma County, California
|
86.4%
|
| 23 |
Mono County, California
|
86.3%
|
| 24 |
Solano County, California
|
86.2%
|
| 25 |
Butte County, California
|
86.1%
|
| 26 |
Alameda County, California
|
86.0%
|
| 27 |
San Francisco County, California
|
85.7%
|
| 28 |
San Diego County, California
|
85.3%
|
| 29 |
Sacramento County, California
|
85.2%
|
| 30 |
Yolo County, California
|
84.1%
|
| 31 |
Santa Cruz County, California
|
84.0%
|
| 32 |
Mendocino County, California
|
83.6%
|
| 33 |
Orange County, California
|
83.4%
|
| 34 |
Modoc County, California
|
83.1%
|
| 35 |
Napa County, California
|
82.6%
|
| 36 |
Ventura County, California
|
82.5%
|
| 37 |
Tehama County, California
|
80.3%
|
| 38 |
Santa Barbara County, California
|
80.2%
|
| 39 |
Lassen County, California
|
79.8%
|
| 40 |
Riverside County, California
|
79.3%
|
| 41 |
Yuba County, California
|
78.3%
|
| 42 |
Del Norte County, California
|
78.2%
|
| 43 |
Sutter County, California
|
78.2%
|
| 44 |
San Bernardino County, California
|
77.8%
|
| 45 |
San Joaquin County, California
|
76.6%
|
| 46 |
Los Angeles County, California
|
76.1%
|
| 47 |
Stanislaus County, California
|
75.6%
|
| 48 |
San Benito County, California
|
75.3%
|
| 49 |
Glenn County, California
|
74.0%
|
| 50 |
Fresno County, California
|
72.8%
|
| 51 |
Kern County, California
|
71.2%
|
| 52 |
Kings County, California
|
70.7%
|
| 53 |
Monterey County, California
|
70.5%
|
| 54 |
Colusa County, California
|
70.5%
|
| 55 |
Madera County, California
|
67.8%
|
| 56 |
Tulare County, California
|
67.8%
|
| 57 |
Merced County, California
|
66.7%
|
| 58 |
Imperial County, California
|
63.4%
|