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 (2024 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.

Swiss Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSWISS SHAREVS 2010

01Modoc County, CACA8,4263.3%+2.8 pts

02Marin County, CACA253,6940.9%−0.2 pts

03El Dorado County, CACA192,3230.6%−0.2 pts

04Inyo County, CACA18,1580.6%+0.4 pts

05Sonoma County, CACA486,4440.6%−0.3 pts

06Humboldt County, CACA131,6470.6%−0.4 pts

07Sierra County, CACA3,0980.6%−3.7 pts

08San Luis Obispo County, CACA282,3670.6%−0.5 pts

09Siskiyou County, CACA42,0130.5%+0.0 pts

10Amador County, CACA41,8760.5%−0.1 pts

11Napa County, CACA132,9490.5%−0.1 pts

12Calaveras County, CACA46,6050.5%−0.0 pts

13Placer County, CACA442,0810.5%−0.1 pts

14Nevada County, CACA101,9110.5%−0.5 pts

15Yolo County, CACA224,4100.5%−0.1 pts

16Monterey County, CACA433,7290.5%−0.3 pts

17Tuolumne County, CACA53,1600.5%−0.2 pts

18Santa Cruz County, CACA258,8520.5%−0.2 pts

19Santa Barbara County, CACA442,0650.4%−0.2 pts

20San Benito County, CACA70,0820.4%−0.2 pts

21Butte County, CACA209,2110.4%−0.4 pts

22Trinity County, CACA15,7200.4%−1.2 pts

23Del Norte County, CACA26,4100.4%−0.1 pts

24Sacramento County, CACA1,618,4600.3%−0.0 pts

25Shasta County, CACA181,6480.3%−0.2 pts

26Mendocino County, CACA88,1220.3%−0.3 pts

27Mono County, CACA12,5050.3%−0.6 pts

28Stanislaus County, CACA557,7190.3%−0.2 pts

29Lake County, CACA67,7720.3%−0.3 pts

30San Francisco County, CACA826,0790.3%−0.1 pts

31San Mateo County, CACA743,5680.3%−0.1 pts

32Sutter County, CACA98,7870.3%−0.2 pts

33Colusa County, CACA21,8360.3%−0.5 pts

34Glenn County, CACA28,1410.3%−0.3 pts

35Lassen County, CACA28,1170.3%−0.2 pts

36San Diego County, CACA3,282,2480.2%−0.1 pts

37Santa Clara County, CACA1,914,3910.2%−0.2 pts

38Contra Costa County, CACA1,170,0700.2%−0.2 pts

39Ventura County, CACA830,8510.2%−0.1 pts

40Alameda County, CACA1,636,6300.2%−0.1 pts

41Madera County, CACA167,9270.2%−0.0 pts

42Solano County, CACA455,3760.2%−0.2 pts

43Tehama County, CACA64,6650.2%−0.2 pts

44Orange County, CACA3,149,5070.2%−0.1 pts

45Merced County, CACA297,2600.2%−0.2 pts

46San Joaquin County, CACA823,8150.2%−0.2 pts

47Imperial County, CACA181,4110.2%−0.1 pts

48Plumas County, CACA18,5830.1%−0.6 pts

49Fresno County, CACA1,035,4560.1%−0.1 pts

50Los Angeles County, CACA9,694,9340.1%−0.0 pts

51Kern County, CACA927,0680.1%−0.1 pts

52Kings County, CACA154,3270.1%−0.0 pts

53Tulare County, CACA485,1460.1%−0.0 pts

54Riverside County, CACA2,544,9160.1%−0.1 pts

55Mariposa County, CACA16,9180.1%–

56San Bernardino County, CACA2,224,0910.1%−0.1 pts

57Yuba County, CACA88,6910.1%−0.2 pts

SHOWING 1–57 OF 57

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES