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 (2020 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. The median across all 55 is 0.2%.

Finnish 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

RANKPLACESTATEPOPFINNISH SHAREVS 2010

01Mendocino County, CACA88,1220.9%−0.4 pts

02Mono County, CACA12,5050.8%–

03Siskiyou County, CACA42,0130.5%+0.3 pts

04Mariposa County, CACA16,9180.5%+0.4 pts

05Humboldt County, CACA131,6470.4%0.0 pts

06Nevada County, CACA101,9110.4%−0.2 pts

07Lassen County, CACA28,1170.4%+0.2 pts

08Sonoma County, CACA486,4440.4%0.0 pts

09El Dorado County, CACA192,3230.4%0.0 pts

10Shasta County, CACA181,6480.3%−0.3 pts

11Napa County, CACA132,9490.3%+0.1 pts

12Tuolumne County, CACA53,1600.3%−0.1 pts

13Contra Costa County, CACA1,170,0700.3%0.0 pts

14Placer County, CACA442,0810.3%−0.1 pts

15Del Norte County, CACA26,4100.3%−0.1 pts

16Marin County, CACA253,6940.3%0.0 pts

17Plumas County, CACA18,5830.2%−1.2 pts

18Santa Cruz County, CACA258,8520.2%−0.1 pts

19Butte County, CACA209,2110.2%0.0 pts

20Santa Barbara County, CACA442,0650.2%0.0 pts

21San Luis Obispo County, CACA282,3670.2%0.0 pts

22Amador County, CACA41,8760.2%+0.1 pts

23Calaveras County, CACA46,6050.2%0.0 pts

24Ventura County, CACA830,8510.2%+0.1 pts

25San Francisco County, CACA826,0790.2%0.0 pts

26Trinity County, CACA15,7200.2%−0.7 pts

27Inyo County, CACA18,1580.2%+0.1 pts

28Yolo County, CACA224,4100.2%0.0 pts

29San Mateo County, CACA743,5680.2%0.0 pts

30San Diego County, CACA3,282,2480.2%0.0 pts

31Alameda County, CACA1,636,6300.2%0.0 pts

32San Benito County, CACA70,0820.1%+0.1 pts

33Lake County, CACA67,7720.1%−0.2 pts

34Madera County, CACA167,9270.1%+0.1 pts

35Solano County, CACA455,3760.1%−0.1 pts

36Santa Clara County, CACA1,914,3910.1%0.0 pts

37Sacramento County, CACA1,618,4600.1%0.0 pts

38Kern County, CACA927,0680.1%0.0 pts

39Colusa County, CACA21,8360.1%+0.1 pts

40Orange County, CACA3,149,5070.1%0.0 pts

41Stanislaus County, CACA557,7190.1%0.0 pts

42Tehama County, CACA64,6650.1%−0.1 pts

43Fresno County, CACA1,035,4560.1%0.0 pts

44Tulare County, CACA485,1460.1%0.0 pts

45Modoc County, CACA8,4260.1%−0.2 pts

46Monterey County, CACA433,7290.1%0.0 pts

47Riverside County, CACA2,544,9160.1%0.0 pts

48Los Angeles County, CACA9,694,9340.1%0.0 pts

49San Joaquin County, CACA823,8150.1%0.0 pts

50Kings County, CACA154,3270.1%−0.1 pts

51San Bernardino County, CACA2,224,0910.1%0.0 pts

52Glenn County, CACA28,1410.1%−0.1 pts

53Sutter County, CACA98,7870.0%−0.1 pts

54Yuba County, CACA88,6910.0%−0.1 pts

55Merced County, CACA297,2600.0%−0.1 pts

SHOWING 1–55 OF 55

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