Ranking of California Counties By Percentage of Population that are White Alone in 2015

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2015, among all California counties, Sierra County had the highest percentage of its population who identified their race as White Alone (94.25%), followed by Nevada County (93.78%), and Calaveras County (91.94%).

The chart below shows the top 10 counties, and the table below shows the ranking of all California counties.

You can see similar ranking information for other racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.

See this for other years:
Ranking of California Counties By Percentage of Pop. that are White Alone in 2015
Sierra
Nevada
Calaveras
Colusa
Plumas
Tuolumne
Mono
Tehama
Amador
Imperial
Ranking of California Counties By Percentage of Pop. that are White Alone in 2015
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Rank County % of County Population
1 Sierra County 94.25
2 Nevada County 93.78
3 Calaveras County 91.94
4 Colusa County 91.38
5 Plumas County 91.04
6 Tuolumne County 90.88
7 Mono County 90.8
8 Tehama County 90.74
9 Amador County 90.66
10 Imperial County 89.99
11 Mariposa County 89.9
12 Glenn County 89.74
13 El Dorado County 89.7
14 San Luis Obispo County 89.17
15 Modoc County 88.88
16 San Benito County 88.54
17 Shasta County 88.43
18 Tulare County 88.34
19 Trinity County 88.32
20 Lake County 87.68
21 Santa Cruz County 87.55
22 Sonoma County 87.32
23 Siskiyou County 86.94
24 Mendocino County 86.6
25 Butte County 86.51
26 Madera County 86.11
27 Marin County 86
28 Santa Barbara County 85.76
29 Placer County 85.75
30 Napa County 84.78
31 Ventura County 84.68
32 Stanislaus County 83.97
33 Humboldt County 83.75
34 Monterey County 82.71
35 Kern County 82.62
36 Merced County 81.99
37 Lassen County 81.61
38 Kings County 81.46
39 Inyo County 80.9
40 Riverside County 80.23
41 Yuba County 79.48
42 Del Norte County 78.45
43 San Bernardino County 77.08
44 Fresno County 76.92
45 San Diego County 75.99
46 Yolo County 75.27
47 Sutter County 73.73
48 Orange County 72.86
49 Alpine County 71.48
50 Los Angeles County 70.95
51 San Joaquin County 67.66
52 Contra Costa County 66.9
53 Sacramento County 64.11
54 San Mateo County 61.75
55 Solano County 60.23
56 Santa Clara County 55.16
57 San Francisco County 53.78
58 Alameda County 50.95