| County | American Indian Percentage of Total Population |
| Alpine |  23 |
| Inyo | 13 |
| Del Norte | 9 |
| Mendocino | 6 |
| Humboldt | 6 |
| Modoc | 5 |
| Trinity | 5 |
| Madera | 5 |
| Siskiyou | 5 |
| Lassen | 4 |
| Lake | 4 |
| Tehama | 3 |
| Mariposa | 3 |
| San Benito | 3 |
| Shasta | 3 |
| Kings | 3 |
| Glenn | 3 |
| Yuba | 3 |
| Fresno | 3 |
| Plumas | 3 |
| Tulare | 3 |
| Mono | 3 |
| Monterey | 3 |
| Kern | 3 |
| Imperial | 3 |
| Colusa | 3 |
| Merced | 3 |
| Butte | 2 |
| Sutter | 2 |
| Tuolumne | 2 |
| Sonoma | 2 |
| Santa Barbara | 2 |
| Amador | 2 |
| San Bernardino | 2 |
| San Joaquin | 2 |
| Riverside | 2 |
| Stanislaus | 2 |
| Ventura | 2 |
| Yolo | 2 |
| Calaveras | 2 |
| Santa Cruz | 2 |
| Sierra | 2 |
| Sacramento | 2 |
| Los Angeles | 2 |
| Santa Clara | 1 |
| San Luis Obispo | 1 |
| El Dorado | 1 |
| San Diego | 1 |
| Alameda | 1 |
| Napa | 1 |
| Nevada | 1 |
| Solano | 1 |
| Orange | 1 |
| Marin | 1 |
| Placer | 1 |
| Contra Costa | 1 |
| San Mateo | 1 |
| San Francisco | 1 |