RANKING · 2020 CENSUS · 58 SHOWN OF 58

Highest Polish population share, California counties · 2020

California counties ranked by the share of all residents who are Polish ancestry (2023 American Community Survey). A concentration measure: Polish residents as a percentage of total population. This list covers the 58 counties in California that qualify, ranked against each other statewide.

CaliforniaAll states All rankings

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 SHAREVS 2000

01Mono County, CACA12,5055.2%–

02Sierra County, CACA3,0982.8%–

03Marin County, CACA253,6942.8%–

04Santa Cruz County, CACA258,8521.9%–

05San Francisco County, CACA826,0791.9%–

06Sonoma County, CACA486,4441.8%–

07Ventura County, CACA830,8511.8%–

08Inyo County, CACA18,1581.7%–

09San Luis Obispo County, CACA282,3671.7%–

10San Diego County, CACA3,282,2481.7%–

11El Dorado County, CACA192,3231.7%–

12Placer County, CACA442,0811.6%–

13Nevada County, CACA101,9111.6%–

14Shasta County, CACA181,6481.5%–

15Calaveras County, CACA46,6051.5%–

16Orange County, CACA3,149,5071.4%–

17San Mateo County, CACA743,5681.4%–

18Santa Barbara County, CACA442,0651.4%–

19Contra Costa County, CACA1,170,0701.4%–

20Tuolumne County, CACA53,1601.4%–

21Siskiyou County, CACA42,0131.4%–

22Amador County, CACA41,8761.4%–

23Mendocino County, CACA88,1221.3%–

24Napa County, CACA132,9491.3%–

25Humboldt County, CACA131,6471.3%–

26Yolo County, CACA224,4101.2%–

27Lassen County, CACA28,1171.2%–

28Butte County, CACA209,2111.2%–

29Sacramento County, CACA1,618,4601.1%–

30Alameda County, CACA1,636,6301.1%–

31Los Angeles County, CACA9,694,9341.1%–

32Santa Clara County, CACA1,914,3911.1%–

33Tehama County, CACA64,6651.1%–

34Lake County, CACA67,7721.0%–

35Riverside County, CACA2,544,9161.0%–

36Trinity County, CACA15,7201.0%–

37Del Norte County, CACA26,4100.9%–

38Mariposa County, CACA16,9180.9%–

39Modoc County, CACA8,4260.9%–

40Yuba County, CACA88,6910.9%–

41San Bernardino County, CACA2,224,0910.8%–

42Solano County, CACA455,3760.8%–

43Monterey County, CACA433,7290.8%–

44Glenn County, CACA28,1410.8%–

45Kern County, CACA927,0680.6%–

46Sutter County, CACA98,7870.6%–

47San Joaquin County, CACA823,8150.6%–

48San Benito County, CACA70,0820.5%–

49Stanislaus County, CACA557,7190.5%–

50Plumas County, CACA18,5830.5%–

51Merced County, CACA297,2600.5%–

52Colusa County, CACA21,8360.5%–

53Madera County, CACA167,9270.4%–

54Fresno County, CACA1,035,4560.4%–

55Kings County, CACA154,3270.3%–

56Tulare County, CACA485,1460.3%–

57Imperial County, CACA181,4110.2%–

58Alpine County, CACA1,0430.2%–

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

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