RANKING · 2024 ACS · 58 SHOWN OF 58

Largest Polish population, California counties

California counties ranked by the number of residents who are Polish ancestry, from the 2024 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. The median across all 58 is 2,086. Biggest climber in the top 100 since 2020: Mariposa County, CA, up 10 places to #42.

Polish Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPPOLISH POPULATIONVS 2010

01Los Angeles County, CACA9,694,934103,981−18%

02San Diego County, CACA3,282,24853,920−13%

03Orange County, CACA3,149,50742,195−20%

04Riverside County, CACA2,544,91623,603−20%

05Santa Clara County, CACA1,914,39118,777−13%

06Alameda County, CACA1,636,63018,478−6%

07▲1Sacramento County, CACA1,618,46016,762−9%

08▼1San Bernardino County, CACA2,224,09115,642−32%

09San Francisco County, CACA826,07914,926−7%

10Contra Costa County, CACA1,170,07014,615−5%

11Ventura County, CACA830,85113,725−27%

12San Mateo County, CACA743,5689,062−15%

13Sonoma County, CACA486,4448,763+6%

14Marin County, CACA253,6947,511+20%

15▲1Santa Barbara County, CACA442,0655,741−19%

16▼1Placer County, CACA442,0815,565−20%

17Kern County, CACA927,0685,332−11%

18▲1San Luis Obispo County, CACA282,3674,972−6%

19▲1San Joaquin County, CACA823,8154,7810%

20▼2Santa Cruz County, CACA258,8524,774−13%

21▲1Solano County, CACA455,3763,909−17%

22▼1Fresno County, CACA1,035,4563,408−25%

23▲1El Dorado County, CACA192,3233,357−2%

24▼1Monterey County, CACA433,7293,251−16%

25▲1Yolo County, CACA224,4103,062−11%

26▼1Stanislaus County, CACA557,7192,762−26%

27▲3Humboldt County, CACA131,6472,435−3%

28▲3Nevada County, CACA101,9112,145+12%

29▼2Shasta County, CACA181,6482,086−21%

30▼2Butte County, CACA209,2111,689−44%

31▼2Napa County, CACA132,9491,683−5%

32▲7Lake County, CACA67,7721,266+66%

33Tulare County, CACA485,1461,247−29%

34▲6Yuba County, CACA88,691925−10%

35▲1Tuolumne County, CACA53,160891−2%

36▲8Amador County, CACA41,876883+131%

37▼3Mendocino County, CACA88,122882−26%

38▲3Madera County, CACA167,927683−15%

39▲8San Benito County, CACA70,082651+24%

40▼8Merced County, CACA297,260583−51%

41▼3Calaveras County, CACA46,605527−25%

42▲10Mariposa County, CACA16,918497−23%

43▲2Kings County, CACA154,327490−58%

44▼7Tehama County, CACA64,665475−34%

45▲4Inyo County, CACA18,158422+76%

46▼4Siskiyou County, CACA42,013402−32%

47▲3Del Norte County, CACA26,410332−23%

48▼5Sutter County, CACA98,787330−60%

49▼3Lassen County, CACA28,117297−36%

50▲5Plumas County, CACA18,583237+41%

51▼3Imperial County, CACA181,411212−69%

52▼17Mono County, CACA12,505190−33%

53▼2Glenn County, CACA28,141130−33%

54▲3Modoc County, CACA8,42695–

55▼2Trinity County, CACA15,72033−87%

56▼2Colusa County, CACA21,83628−10%

57▼1Sierra County, CACA3,09814−76%

58Alpine County, CACA1,0437−68%

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

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