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

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2015, among all California counties, Santa Clara County had the highest percentage of its population who identified their race as Asian Alone (36.15%), followed by San Francisco County (35.01%), and Alameda County (29.83%).

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 Asian Alone in 2015
Santa Clara
San Francisco
Alameda
San Mateo
Orange
Contra Costa
Sutter
San Joaquin
Sacramento
Solano
Ranking of California Counties By Percentage of Pop. that are Asian Alone in 2015
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Rank County % of County Population
1 Santa Clara County 36.15
2 San Francisco County 35.01
3 Alameda County 29.83
4 San Mateo County 28.32
5 Orange County 20.24
6 Contra Costa County 16.74
7 Sutter County 16.65
8 San Joaquin County 16.25
9 Sacramento County 16.09
10 Solano County 15.62
11 Los Angeles County 15.07
12 Yolo County 14.41
13 San Diego County 12.13
14 Fresno County 10.86
15 Napa County 8.21
16 Merced County 8.03
17 Ventura County 7.52
18 San Bernardino County 7.38
19 Yuba County 7.14
20 Placer County 7.09
21 Riverside County 6.84
22 Monterey County 6.76
23 Marin County 6.08
24 Stanislaus County 5.87
25 Santa Barbara County 5.81
26 Kern County 5.14
27 Santa Cruz County 4.93
28 Butte County 4.68
29 Kings County 4.4
30 Sonoma County 4.3
31 El Dorado County 4.15
32 Tulare County 3.98
33 San Luis Obispo County 3.82
34 Del Norte County 3.54
35 San Benito County 3.32
36 Glenn County 2.94
37 Shasta County 2.84
38 Humboldt County 2.76
39 Madera County 2.38
40 Mono County 2.37
41 Imperial County 2.17
42 Mendocino County 2.02
43 Colusa County 1.77
44 Mariposa County 1.58
45 Alpine County 1.57
46 Amador County 1.53
46 Inyo County 1.53
47 Calaveras County 1.47
48 Lassen County 1.46
49 Siskiyou County 1.36
50 Tehama County 1.34
51 Tuolumne County 1.31
52 Lake County 1.3
53 Nevada County 1.29
54 Modoc County 1.16
55 Plumas County 0.97
56 Trinity County 0.89
57 Sierra County 0.54