RANKING · 2010 CENSUS · 57 SHOWN OF 57

Largest Polish population, California counties · 2010

California counties ranked by the number of residents who are Polish ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 57 counties in California that qualify, ranked against each other statewide.

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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 2000

01Los Angeles County, CACA9,694,934126,154–

02San Diego County, CACA3,282,24862,094–

03Orange County, CACA3,149,50753,033–

04Riverside County, CACA2,544,91629,431–

05San Bernardino County, CACA2,224,09122,930–

06Santa Clara County, CACA1,914,39121,479–

07Alameda County, CACA1,636,63019,584–

08Ventura County, CACA830,85118,700–

09Sacramento County, CACA1,618,46018,395–

10San Francisco County, CACA826,07916,127–

11Contra Costa County, CACA1,170,07015,430–

12San Mateo County, CACA743,56810,638–

13Sonoma County, CACA486,4448,261–

14Santa Barbara County, CACA442,0657,078–

15Placer County, CACA442,0816,939–

16Marin County, CACA253,6946,257–

17Kern County, CACA927,0686,012–

18Santa Cruz County, CACA258,8525,485–

19San Luis Obispo County, CACA282,3675,268–

20San Joaquin County, CACA823,8154,774–

21Solano County, CACA455,3764,695–

22Fresno County, CACA1,035,4564,529–

23Monterey County, CACA433,7293,860–

24Stanislaus County, CACA557,7193,753–

25Yolo County, CACA224,4103,447–

26El Dorado County, CACA192,3233,418–

27Butte County, CACA209,2113,001–

28Shasta County, CACA181,6482,633–

29Humboldt County, CACA131,6472,508–

30Nevada County, CACA101,9111,922–

31Napa County, CACA132,9491,779–

32Tulare County, CACA485,1461,765–

33Merced County, CACA297,2601,197–

34Mendocino County, CACA88,1221,185–

35Kings County, CACA154,3271,168–

36Yuba County, CACA88,6911,023–

37Tuolumne County, CACA53,160911–

38Sutter County, CACA98,787816–

39Madera County, CACA167,927802–

40Lake County, CACA67,772761–

41Tehama County, CACA64,665716–

42Calaveras County, CACA46,605704–

43Imperial County, CACA181,411675–

44Mariposa County, CACA16,918646–

45Siskiyou County, CACA42,013590–

46San Benito County, CACA70,082525–

47Lassen County, CACA28,117466–

48Del Norte County, CACA26,410430–

49Amador County, CACA41,876383–

50Mono County, CACA12,505282–

51Trinity County, CACA15,720261–

52Inyo County, CACA18,158240–

53Glenn County, CACA28,141194–

54Plumas County, CACA18,583168–

55Sierra County, CACA3,09858–

56Colusa County, CACA21,83631–

57Alpine County, CACA1,04322–

SHOWING 1–57 OF 57

Download CSV (full list, 57 rows)

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