RANKING · 2020 CENSUS · 58 SHOWN OF 58

Largest Italian population, California counties · 2020

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

Italian 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

RANKPLACESTATEPOPITALIAN POPULATIONVS 2010

01Los Angeles County, CACA9,694,934259,376−6%

02San Diego County, CACA3,282,248138,497−4%

03Orange County, CACA3,149,507123,506−7%

04Riverside County, CACA2,544,91678,963−5%

05Santa Clara County, CACA1,914,39169,210−14%

06Sacramento County, CACA1,618,46062,739−11%

07Contra Costa County, CACA1,170,07062,642−0%

08San Bernardino County, CACA2,224,09158,309−20%

09Alameda County, CACA1,636,63052,355−5%

10Sonoma County, CACA486,44442,325−4%

11San Mateo County, CACA743,56841,270−15%

12San Francisco County, CACA826,07940,291+4%

13Ventura County, CACA830,85137,554−8%

14San Joaquin County, CACA823,81527,436−19%

15Placer County, CACA442,08126,533+0%

16Fresno County, CACA1,035,45625,177−20%

17Marin County, CACA253,69420,645−10%

18Stanislaus County, CACA557,71920,236−1%

19Kern County, CACA927,06819,020−13%

20Santa Barbara County, CACA442,06518,337−6%

21San Luis Obispo County, CACA282,36716,716+3%

22Solano County, CACA455,37616,341−3%

23Santa Cruz County, CACA258,85215,944−14%

24Monterey County, CACA433,72914,311−16%

25El Dorado County, CACA192,32313,274−7%

26Butte County, CACA209,21111,100−21%

27Shasta County, CACA181,64810,694+11%

28Yolo County, CACA224,4108,547−10%

29Napa County, CACA132,9498,197−3%

30Humboldt County, CACA131,6477,036−22%

31Tulare County, CACA485,1466,920+3%

32Nevada County, CACA101,9116,264−22%

33Merced County, CACA297,2605,685−11%

34Mendocino County, CACA88,1224,391−26%

35Tuolumne County, CACA53,1604,068−17%

36San Benito County, CACA70,0824,051+2%

37Madera County, CACA167,9274,001−17%

38Kings County, CACA154,3273,589−12%

39Lake County, CACA67,7723,222−31%

40Calaveras County, CACA46,6052,976−28%

41Yuba County, CACA88,6912,957+12%

42Amador County, CACA41,8762,779−23%

43Tehama County, CACA64,6652,443+4%

44Siskiyou County, CACA42,0132,443−27%

45Sutter County, CACA98,7872,418−35%

46Plumas County, CACA18,5831,348−6%

47Imperial County, CACA181,4111,325−36%

48Mariposa County, CACA16,9181,137−0%

49Glenn County, CACA28,1411,083+15%

50Lassen County, CACA28,117954−44%

51Del Norte County, CACA26,410918−36%

52Inyo County, CACA18,158764+22%

53Mono County, CACA12,505506−51%

54Colusa County, CACA21,836505−24%

55Trinity County, CACA15,720405−50%

56Modoc County, CACA8,426204−30%

57Sierra County, CACA3,098193−30%

58Alpine County, CACA1,04360−55%

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

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