RANKING · 2024 ACS · 57 SHOWN OF 57

Highest Swiss population share, California counties

California counties ranked by the share of all residents who are Swiss ancestry (2023 American Community Survey). A concentration measure: Swiss residents as a percentage of total population. This list covers the 57 counties in California that qualify, ranked against each other statewide.

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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 SHAREVS 2000

01Modoc County, CACA8,4263.3%–

02Marin County, CACA253,6940.9%–

03El Dorado County, CACA192,3230.6%–

04Inyo County, CACA18,1580.6%–

05Sonoma County, CACA486,4440.6%–

06Humboldt County, CACA131,6470.6%–

07Sierra County, CACA3,0980.6%–

08San Luis Obispo County, CACA282,3670.6%–

09Siskiyou County, CACA42,0130.5%–

10Amador County, CACA41,8760.5%–

11Napa County, CACA132,9490.5%–

12Calaveras County, CACA46,6050.5%–

13Placer County, CACA442,0810.5%–

14Nevada County, CACA101,9110.5%–

15Yolo County, CACA224,4100.5%–

16Monterey County, CACA433,7290.5%–

17Tuolumne County, CACA53,1600.5%–

18Santa Cruz County, CACA258,8520.5%–

19Santa Barbara County, CACA442,0650.4%–

20San Benito County, CACA70,0820.4%–

21Butte County, CACA209,2110.4%–

22Trinity County, CACA15,7200.4%–

23Del Norte County, CACA26,4100.4%–

24Sacramento County, CACA1,618,4600.3%–

25Shasta County, CACA181,6480.3%–

26Mendocino County, CACA88,1220.3%–

27Mono County, CACA12,5050.3%–

28Stanislaus County, CACA557,7190.3%–

29Lake County, CACA67,7720.3%–

30San Francisco County, CACA826,0790.3%–

31San Mateo County, CACA743,5680.3%–

32Sutter County, CACA98,7870.3%–

33Colusa County, CACA21,8360.3%–

34Glenn County, CACA28,1410.3%–

35Lassen County, CACA28,1170.3%–

36San Diego County, CACA3,282,2480.2%–

37Santa Clara County, CACA1,914,3910.2%–

38Contra Costa County, CACA1,170,0700.2%–

39Ventura County, CACA830,8510.2%–

40Alameda County, CACA1,636,6300.2%–

41Madera County, CACA167,9270.2%–

42Solano County, CACA455,3760.2%–

43Tehama County, CACA64,6650.2%–

44Orange County, CACA3,149,5070.2%–

45Merced County, CACA297,2600.2%–

46San Joaquin County, CACA823,8150.2%–

47Imperial County, CACA181,4110.2%–

48Plumas County, CACA18,5830.1%–

49Fresno County, CACA1,035,4560.1%–

50Los Angeles County, CACA9,694,9340.1%–

51Kern County, CACA927,0680.1%–

52Kings County, CACA154,3270.1%–

53Tulare County, CACA485,1460.1%–

54Riverside County, CACA2,544,9160.1%–

55Mariposa County, CACA16,9180.1%–

56San Bernardino County, CACA2,224,0910.1%–

57Yuba County, CACA88,6910.1%–

SHOWING 1–57 OF 57

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES