| County | Black Percentage of Total Population |
| Solano |  15 |
| Alameda | 13 |
| Sacramento | 11 |
| San Bernardino | 10 |
| Contra Costa | 10 |
| Los Angeles | 9 |
| Lassen | 9 |
| San Joaquin | 8 |
| Kings | 8 |
| Riverside | 7 |
| Kern | 6 |
| San Francisco | 6 |
| Fresno | 6 |
| San Diego | 6 |
| Merced | 4 |
| Madera | 4 |
| Del Norte | 4 |
| Yuba | 4 |
| Imperial | 4 |
| Monterey | 4 |
| Stanislaus | 3 |
| San Mateo | 3 |
| Yolo | 3 |
| Santa Clara | 3 |
| Marin | 3 |
| Santa Barbara | 2 |
| Sutter | 2 |
| Napa | 2 |
| Amador | 2 |
| San Luis Obispo | 2 |
| Tuolumne | 2 |
| Ventura | 2 |
| Tulare | 2 |
| Orange | 2 |
| Lake | 2 |
| Sonoma | 2 |
| Butte | 2 |
| Placer | 2 |
| Siskiyou | 2 |
| Santa Cruz | 1 |
| Humboldt | 1 |
| San Benito | 1 |
| Colusa | 1 |
| Modoc | 1 |
| Glenn | 1 |
| Mariposa | 1 |
| Plumas | 1 |
| Shasta | 1 |
| Calaveras | 1 |
| Mendocino | 1 |
| El Dorado | 1 |
| Tehama | 1 |
| Inyo | 1 |
| Mono | 1 |
| Trinity | 1 |
| Nevada | 1 |
| Alpine | 0 |
| Sierra | 0 |