Ranking of California Counties By Percentage of Population that are Non-Hispanic Two Or More Races in 2018

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2018, among all California counties, Solano County had the highest percentage of its population who identified their ethnicity as Non-Hispanic Two Or More Races (5.41%), followed by Sacramento County (4.9%), and Humboldt County (4.72%).

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 Non-Hispanic Two Or More Races in 2018
Solano
Sacramento
Humboldt
Yuba
Trinity
Siskiyou
Alameda
Contra Costa
Yolo
Del Norte
Ranking of California Counties By Percentage of Pop. that are Non-Hispanic Two Or More Races in 2018
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Rank County % of County Population
1 Solano County 5.41
2 Sacramento County 4.9
3 Humboldt County 4.72
4 Yuba County 4.6
5 Trinity County 4.57
6 Siskiyou County 4.54
7 Alameda County 4.19
8 Contra Costa County 4.17
9 Yolo County 4.14
10 Del Norte County 4.03
11 San Mateo County 3.8
12 Shasta County 3.71
13 San Francisco County 3.66
14 Placer County 3.63
15 Butte County 3.61
16 San Joaquin County 3.48
17 San Diego County 3.44
18 Sutter County 3.35
19 Lake County 3.32
19 Marin County 3.32
20 Plumas County 3.19
21 Mariposa County 3.18
21 Santa Clara County 3.18
22 Calaveras County 3.15
23 El Dorado County 3.08
24 Santa Cruz County 3
25 Alpine County 2.96
26 Lassen County 2.95
27 Sonoma County 2.92
28 Mendocino County 2.76
29 Orange County 2.75
30 Stanislaus County 2.74
31 Tuolumne County 2.71
32 Tehama County 2.69
33 Modoc County 2.65
34 Nevada County 2.61
35 San Luis Obispo County 2.56
36 Amador County 2.49
37 Inyo County 2.47
38 Ventura County 2.46
39 Napa County 2.44
40 Riverside County 2.37
41 Santa Barbara County 2.34
42 Monterey County 2.33
43 San Bernardino County 2.19
43 Sierra County 2.19
44 Kings County 2.17
44 Los Angeles County 2.17
45 Mono County 2.07
46 Fresno County 1.91
47 Kern County 1.9
48 Glenn County 1.83
48 Merced County 1.83
49 San Benito County 1.7
50 Madera County 1.57
51 Colusa County 1.49
52 Tulare County 1.43
53 Imperial County 0.55