Data / Rankings / Asian population share / Counties in California

Counties in California by asian population share

Santa Clara County had the highest asian population share of 58 counties in 2021, at 37.9%. Sierra County had the lowest, at 0%. The median was 4.6% and the figure for California was 14.7%. Source: the U.S. Census Bureau.

Highest37.9Santa Clara County
Lowest0Sierra County
Median4.658 counties
California14.7History

All counties, 2021

CSVChart (SVG)

Santa Clara CountySanta Clara County: 37.9 %37.9San Francisco CountySan Francisco County: 34.1 %34.1Alameda CountyAlameda County: 31.4 %31.4San Mateo CountySan Mateo County: 29.6 %29.6Orange CountyOrange County: 21.1 %21.1Contra Costa CountyContra Costa County: 17.6 %17.6Sacramento CountySacramento County: 16.6 %16.6San Joaquin CountySan Joaquin County: 16.1 %16.1Sutter CountySutter County: 16.1 %16.1Solano CountySolano County: 15.2 %15.2Los Angeles CountyLos Angeles County: 14.6 %14.6Yolo CountyYolo County: 14.3 %14.3San Diego CountySan Diego County: 11.7 %11.7Fresno CountyFresno County: 10.4 %10.4Placer CountyPlacer County: 8.4 %8.4Napa CountyNapa County: 7.7 %7.7Merced CountyMerced County: 7.3 %7.3San Bernardino CountySan Bernardino County: 7.3 %7.3Ventura CountyVentura County: 7.1 %7.1Yuba CountyYuba County: 7 %7Riverside CountyRiverside County: 6.6 %6.6Marin CountyMarin County: 6 %6Stanislaus CountyStanislaus County: 5.6 %5.6Monterey CountyMonterey County: 5.6 %5.6Santa Barbara CountySanta Barbara County: 5.3 %5.3Butte CountyButte County: 4.9 %4.9El Dorado CountyEl Dorado County: 4.8 %4.8Santa Cruz CountySanta Cruz County: 4.7 %4.7Kern CountyKern County: 4.7 %4.7Mono CountyMono County: 4.6 %4.6Sonoma CountySonoma County: 4.3 %4.3Kings CountyKings County: 3.7 %3.7Glenn CountyGlenn County: 3.5 %3.5Tulare CountyTulare County: 3.5 %3.5San Luis Obispo CountySan Luis Obispo County: 3.4 %3.4Shasta CountyShasta County: 3.3 %3.3Humboldt CountyHumboldt County: 3.1 %3.1Del Norte CountyDel Norte County: 2.9 %2.9San Benito CountySan Benito County: 2.8 %2.8Calaveras CountyCalaveras County: 2.3 %2.3Madera CountyMadera County: 2.2 %2.2Mendocino CountyMendocino County: 2.2 %2.2Trinity CountyTrinity County: 2.1 %2.1Tehama CountyTehama County: 1.8 %1.8Lassen CountyLassen County: 1.6 %1.6Inyo CountyInyo County: 1.5 %1.5Siskiyou CountySiskiyou County: 1.5 %1.5Tuolumne CountyTuolumne County: 1.4 %1.4Lake CountyLake County: 1.4 %1.4Imperial CountyImperial County: 1.2 %1.2Nevada CountyNevada County: 1.1 %1.1Amador CountyAmador County: 1.1 %1.1Mariposa CountyMariposa County: 1 %1Modoc CountyModoc County: 0.8 %0.8Alpine CountyAlpine County: 0.7 %0.7Colusa CountyColusa County: 0.7 %0.7Plumas CountyPlumas County: 0.6 %0.6Sierra CountySierra County: 0 %0
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)
1Santa Clara County37.9
2San Francisco County34.1
3Alameda County31.4
4San Mateo County29.6
5Orange County21.1
6Contra Costa County17.6
7Sacramento County16.6
8San Joaquin County16.1
9Sutter County16.1
10Solano County15.2
11Los Angeles County14.6
12Yolo County14.3
13San Diego County11.7
14Fresno County10.4
15Placer County8.4
16Napa County7.7
17Merced County7.3
18San Bernardino County7.3
19Ventura County7.1
20Yuba County7
21Riverside County6.6
22Marin County6
23Stanislaus County5.6
24Monterey County5.6
25Santa Barbara County5.3
26Butte County4.9
27El Dorado County4.8
28Santa Cruz County4.7
29Kern County4.7
30Mono County4.6
31Sonoma County4.3
32Kings County3.7
33Glenn County3.5
33Tulare County3.5
35San Luis Obispo County3.4
36Shasta County3.3
37Humboldt County3.1
38Del Norte County2.9
39San Benito County2.8
40Calaveras County2.3
41Madera County2.2
41Mendocino County2.2
43Trinity County2.1
44Tehama County1.8
45Lassen County1.6
46Inyo County1.5
47Siskiyou County1.5
48Tuolumne County1.4
49Lake County1.4
50Imperial County1.2
51Nevada County1.1
52Amador County1.1
53Mariposa County1
54Modoc County0.8
55Alpine County0.7
56Colusa County0.7
57Plumas County0.6
58Sierra County0

Other periods

About this ranking

People who are not Hispanic or Latino and report Asian as their only race, as a percentage of the total population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

US federal statistics ask about Hispanic origin and race separately, and Hispanic or Latino people can be of any race. The shares for White, Black and Asian count people who are not Hispanic and report that race alone, so the published shares do not add up to 100 (people of two or more races and other races are not shown). Calculated from counts in ACS table B03002, which are stored as inputs. EU and Spanish statistics do not collect race.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B03002: Asian alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b03002.dat. Retrieved 2026-10-09.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in California by asian population share using official data, and cite the source.
rank_places {"indicator":"asian_share","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=asian_share&level=province&within=California&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest asian population share?

Santa Clara County, with 37.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest asian population share?

Sierra County, with 0% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B03002: Asian alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Asian population share: other rankings

Counties in California: more rankings