RANKING · 2020 CENSUS · 58 SHOWN OF 58

Largest Swiss population, California counties · 2020

California counties ranked by the number of residents who are Swiss ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 58 counties in California that qualify, ranked against each other statewide.

Swiss Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSWISS POPULATIONVS 2010

01Los Angeles County, CACA9,694,93414,218−11%

02San Diego County, CACA3,282,2488,312−14%

03Orange County, CACA3,149,5076,914−14%

04Santa Clara County, CACA1,914,3915,611−19%

05Sacramento County, CACA1,618,4605,328+8%

06Alameda County, CACA1,636,6304,268−1%

07Sonoma County, CACA486,4444,106−5%

08Contra Costa County, CACA1,170,0703,452−15%

09Riverside County, CACA2,544,9163,195−21%

10San Bernardino County, CACA2,224,0913,004−6%

11San Francisco County, CACA826,0792,909−11%

12San Mateo County, CACA743,5682,780−6%

13Santa Barbara County, CACA442,0652,264−8%

14San Luis Obispo County, CACA282,3672,062−25%

15Marin County, CACA253,6942,013−21%

16Stanislaus County, CACA557,7191,978−29%

17Ventura County, CACA830,8511,976−19%

18San Joaquin County, CACA823,8151,858−31%

19Placer County, CACA442,0811,829−11%

20Monterey County, CACA433,7291,675−45%

21Fresno County, CACA1,035,4561,549−30%

22Santa Cruz County, CACA258,8521,316−21%

23Butte County, CACA209,2111,243−22%

24Kern County, CACA927,0681,190−18%

25El Dorado County, CACA192,323977−39%

26Humboldt County, CACA131,647898−30%

27Yolo County, CACA224,410898−20%

28Shasta County, CACA181,648830−11%

29Solano County, CACA455,376819−41%

30Napa County, CACA132,949723−20%

31Merced County, CACA297,260519−33%

32Imperial County, CACA181,411458+21%

33Nevada County, CACA101,911449−55%

34San Benito County, CACA70,082447+31%

35Tulare County, CACA485,146439−36%

36Mendocino County, CACA88,122418−25%

37Tuolumne County, CACA53,160307−22%

38Kings County, CACA154,327250+7%

39Lake County, CACA67,772233−44%

40Sutter County, CACA98,787219−54%

41Del Norte County, CACA26,410208+66%

42Siskiyou County, CACA42,013201−16%

43Madera County, CACA167,927177−47%

44Sierra County, CACA3,098173+21%

45Tehama County, CACA64,665158−34%

46Inyo County, CACA18,158157+241%

47Amador County, CACA41,876153−41%

48Lassen County, CACA28,117152−8%

49Calaveras County, CACA46,605143−45%

50Modoc County, CACA8,426108+145%

51Glenn County, CACA28,14193−44%

52Plumas County, CACA18,58393−39%

53Yuba County, CACA88,69190−56%

54Mono County, CACA12,50574−45%

55Colusa County, CACA21,83671−59%

56Mariposa County, CACA16,91850–

57Trinity County, CACA15,72027−87%

58Alpine County, CACA1,0438−20%

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS