RANKING · 2024 ACS · 58 SHOWN OF 58

Highest Polish population share, California counties

California counties ranked by the share of all residents who are Polish ancestry (2024 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. The median across all 58 is 1.1%. Biggest climber in the top 100 since 2020: Mariposa County, CA, up 36 places to #2.

Polish Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPPOLISH SHAREVS 2010

01▲2Marin County, CACA253,6942.9%+0.4 pts

02▲36Mariposa County, CACA16,9182.9%−0.6 pts

03▲5Inyo County, CACA18,1582.3%+1.0 pts

04▲18Amador County, CACA41,8762.1%+1.1 pts

05▲8Nevada County, CACA101,9112.1%+0.1 pts

06▲28Lake County, CACA67,7721.9%+0.7 pts

07▲18Humboldt County, CACA131,6471.8%−0.1 pts

08▼2Sonoma County, CACA486,4441.8%+0.1 pts

09▼5Santa Cruz County, CACA258,8521.8%−0.3 pts

10▼5San Francisco County, CACA826,0791.8%−0.2 pts

11▼2San Luis Obispo County, CACA282,3671.8%−0.2 pts

12▼1El Dorado County, CACA192,3231.7%−0.2 pts

13▼3San Diego County, CACA3,282,2481.6%−0.4 pts

14▼7Ventura County, CACA830,8511.6%−0.7 pts

15▲5Tuolumne County, CACA53,1601.6%0.0 pts

16▼15Mono County, CACA12,5051.4%−0.6 pts

17▲9Yolo County, CACA224,4101.4%−0.4 pts

18▼2Orange County, CACA3,149,5071.3%−0.5 pts

19▼7Placer County, CACA442,0811.3%−0.7 pts

20▼2Santa Barbara County, CACA442,0651.3%−0.4 pts

21▼2Contra Costa County, CACA1,170,0701.3%−0.3 pts

22▲2Napa County, CACA132,9491.2%−0.1 pts

23▲14Del Norte County, CACA26,4101.2%−0.3 pts

24▼7San Mateo County, CACA743,5681.2%−0.3 pts

25▲25Plumas County, CACA18,5831.2%+0.4 pts

26▼12Shasta County, CACA181,6481.1%−0.3 pts

27▼12Calaveras County, CACA46,6051.1%−0.4 pts

28▲2Alameda County, CACA1,636,6301.1%−0.2 pts

29▲10Modoc County, CACA8,4261.1%–

30▲10Yuba County, CACA88,6911.1%−0.3 pts

31Los Angeles County, CACA9,694,9341.1%−0.2 pts

32▼3Sacramento County, CACA1,618,4601.1%−0.3 pts

33▼1Santa Clara County, CACA1,914,3911.0%−0.2 pts

34▼7Lassen County, CACA28,1171.0%−0.3 pts

35▼12Mendocino County, CACA88,1221.0%−0.4 pts

36▲12San Benito County, CACA70,0821.0%0.0 pts

37▼2Riverside County, CACA2,544,9161.0%−0.4 pts

38▼17Siskiyou County, CACA42,0130.9%−0.4 pts

39▲3Solano County, CACA455,3760.9%−0.3 pts

40▼12Butte County, CACA209,2110.8%−0.6 pts

41▲2Monterey County, CACA433,7290.7%−0.2 pts

42▼9Tehama County, CACA64,6650.7%−0.4 pts

43▼2San Bernardino County, CACA2,224,0910.7%−0.4 pts

44▲3San Joaquin County, CACA823,8150.6%−0.1 pts

45Kern County, CACA927,0680.6%−0.2 pts

46▼44Sierra County, CACA3,0980.5%−1.2 pts

47▲2Stanislaus County, CACA557,7190.5%−0.2 pts

48▼4Glenn County, CACA28,1410.5%−0.2 pts

49▲9Alpine County, CACA1,0430.4%−1.4 pts

50▲3Madera County, CACA167,9270.4%−0.1 pts

51▲3Fresno County, CACA1,035,4560.3%−0.2 pts

52▼6Sutter County, CACA98,7870.3%−0.5 pts

53▲2Kings County, CACA154,3270.3%−0.5 pts

54▲2Tulare County, CACA485,1460.3%−0.2 pts

55▼19Trinity County, CACA15,7200.2%−1.7 pts

56▼5Merced County, CACA297,2600.2%−0.3 pts

57▼5Colusa County, CACA21,8360.1%0.0 pts

58▼1Imperial County, CACA181,4110.1%−0.3 pts

SHOWING 1–58 OF 58

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES