RANKING · 2020 CENSUS · 58 SHOWN OF 58

Largest Polish population, California counties · 2020

California counties ranked by the number of residents who are Polish 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.

Polish 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

RANKPLACESTATEPOPPOLISH POPULATIONVS 2010

01Los Angeles County, CACA9,694,934110,418−12%

02San Diego County, CACA3,282,24856,967−8%

03Orange County, CACA3,149,50745,507−14%

04Riverside County, CACA2,544,91624,033−18%

05Santa Clara County, CACA1,914,39120,923−3%

06Alameda County, CACA1,636,63018,676−5%

07San Bernardino County, CACA2,224,09117,958−22%

08Sacramento County, CACA1,618,46017,596−4%

09San Francisco County, CACA826,07916,199+0%

10Contra Costa County, CACA1,170,07016,139+5%

11Ventura County, CACA830,85115,228−19%

12San Mateo County, CACA743,56810,957+3%

13Sonoma County, CACA486,4449,188+11%

14Marin County, CACA253,6947,145+14%

15Placer County, CACA442,0816,438−7%

16Santa Barbara County, CACA442,0656,323−11%

17Kern County, CACA927,0685,236−13%

18Santa Cruz County, CACA258,8525,125−7%

19San Luis Obispo County, CACA282,3674,850−8%

20San Joaquin County, CACA823,8154,192−12%

21Fresno County, CACA1,035,4563,889−14%

22Solano County, CACA455,3763,644−22%

23Monterey County, CACA433,7293,421−11%

24El Dorado County, CACA192,3233,254−5%

25Stanislaus County, CACA557,7192,932−22%

26Yolo County, CACA224,4102,732−21%

27Shasta County, CACA181,6482,659+1%

28Butte County, CACA209,2112,626−12%

29Napa County, CACA132,9491,804+1%

30Humboldt County, CACA131,6471,725−31%

31Nevada County, CACA101,9111,606−16%

32Merced County, CACA297,2601,365+14%

33Tulare County, CACA485,1461,284−27%

34Mendocino County, CACA88,1221,157−2%

35Tuolumne County, CACA53,160755−17%

36Mono County, CACA12,505755+168%

37Tehama County, CACA64,665691−3%

38Calaveras County, CACA46,605672−5%

39Lake County, CACA67,772670−12%

40Yuba County, CACA88,691663−35%

41Madera County, CACA167,927617−23%

42Siskiyou County, CACA42,013603+2%

43Sutter County, CACA98,787550−33%

44Amador County, CACA41,876531+39%

45Kings County, CACA154,327462−60%

46Lassen County, CACA28,117363−22%

47San Benito County, CACA70,082338−36%

48Imperial County, CACA181,411317−53%

49Inyo County, CACA18,158313+30%

50Del Norte County, CACA26,410262−39%

51Glenn County, CACA28,141221+14%

52Mariposa County, CACA16,918158−76%

53Trinity County, CACA15,720120−54%

54Colusa County, CACA21,836105+239%

55Plumas County, CACA18,583100−40%

56Sierra County, CACA3,09881+40%

57Modoc County, CACA8,42677–

58Alpine County, CACA1,0432−91%

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS