Ranking of California Counties By Percentage of Voting-age Population that were Asian Alone from Census 2020

Updated on August 26, 2023.

According to the data from the United States 2020 decennial Census, as at April 2020, among all California counties, Santa Clara County had the highest percentage of its voting-age population that identified their race as Asian Alone (39.70%), followed by San Francisco County (34.54%), and Alameda County (32.49%).

The chart below shows the top 10 counties, and the table below shows the ranking of all California counties based on the percentage of the voting-age population that identified as Asian Alone.

You can see similar ranking information for other states. You can also see similar rankings of counties for other racial groups in California.

Ranking of California Counties By Percentage of Voting-age Population that were Asian Alone from Census 2020
Santa Clara
39.70%
San Francisco
34.54%
Alameda
32.49%
San Mateo
31.10%
Orange
22.80%
Contra Costa
19.06%
Sutter
18.85%
San Joaquin
18.14%
Sacramento
17.65%
Solano
16.97%
Ranking of California Counties By Percentage of Voting-age Population that were Asian Alone from Census 2020
Rank
County
Asian Alone % of County Voting-age Pop.
1 Santa Clara County 39.70
2 San Francisco County 34.54
3 Alameda County 32.49
4 San Mateo County 31.10
5 Orange County 22.80
6 Contra Costa County 19.06
7 Sutter County 18.85
8 San Joaquin County 18.14
9 Sacramento County 17.65
10 Solano County 16.97
11 Los Angeles County 16.02
12 Yolo County 14.79
13 Trinity County 13.54
14 San Diego County 12.95
15 Fresno County 11.37
16 San Bernardino County 9.00
17 Placer County 8.65
18 Ventura County 8.10
19 Napa County 7.87
20 Merced County 7.82
21 Riverside County 7.54
22 Yuba County 6.94
23 Monterey County 6.77
24 Santa Barbara County 6.70
25 Marin County 6.66
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