RANKING · 2020 CENSUS · 55 SHOWN OF 55

Highest Finnish population share, California counties · 2020

California counties ranked by the share of all residents who are Finnish ancestry (2023 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. This list covers the 55 counties in California that qualify, ranked against each other statewide.

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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

RANKPLACESTATEPOPFINNISH SHAREVS 2000

01Mendocino County, CACA88,1220.9%–

02Mono County, CACA12,5050.8%–

03Siskiyou County, CACA42,0130.5%–

04Mariposa County, CACA16,9180.5%–

05Humboldt County, CACA131,6470.4%–

06Nevada County, CACA101,9110.4%–

07Lassen County, CACA28,1170.4%–

08Sonoma County, CACA486,4440.4%–

09El Dorado County, CACA192,3230.4%–

10Shasta County, CACA181,6480.3%–

11Napa County, CACA132,9490.3%–

12Tuolumne County, CACA53,1600.3%–

13Contra Costa County, CACA1,170,0700.3%–

14Placer County, CACA442,0810.3%–

15Del Norte County, CACA26,4100.3%–

16Marin County, CACA253,6940.3%–

17Plumas County, CACA18,5830.2%–

18Santa Cruz County, CACA258,8520.2%–

19Butte County, CACA209,2110.2%–

20Santa Barbara County, CACA442,0650.2%–

21San Luis Obispo County, CACA282,3670.2%–

22Amador County, CACA41,8760.2%–

23Calaveras County, CACA46,6050.2%–

24Ventura County, CACA830,8510.2%–

25San Francisco County, CACA826,0790.2%–

26Trinity County, CACA15,7200.2%–

27Inyo County, CACA18,1580.2%–

28Yolo County, CACA224,4100.2%–

29San Mateo County, CACA743,5680.2%–

30San Diego County, CACA3,282,2480.2%–

31Alameda County, CACA1,636,6300.2%–

32San Benito County, CACA70,0820.1%–

33Lake County, CACA67,7720.1%–

34Madera County, CACA167,9270.1%–

35Solano County, CACA455,3760.1%–

36Santa Clara County, CACA1,914,3910.1%–

37Sacramento County, CACA1,618,4600.1%–

38Kern County, CACA927,0680.1%–

39Colusa County, CACA21,8360.1%–

40Orange County, CACA3,149,5070.1%–

41Stanislaus County, CACA557,7190.1%–

42Tehama County, CACA64,6650.1%–

43Fresno County, CACA1,035,4560.1%–

44Tulare County, CACA485,1460.1%–

45Modoc County, CACA8,4260.1%–

46Monterey County, CACA433,7290.1%–

47Riverside County, CACA2,544,9160.1%–

48Los Angeles County, CACA9,694,9340.1%–

49San Joaquin County, CACA823,8150.1%–

50Kings County, CACA154,3270.1%–

51San Bernardino County, CACA2,224,0910.1%–

52Glenn County, CACA28,1410.1%–

53Sutter County, CACA98,7870.0%–

54Yuba County, CACA88,6910.0%–

55Merced County, CACA297,2600.0%–

SHOWING 1–55 OF 55

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