RANKING · 2024 ACS · 58 SHOWN OF 58

Highest Italian population share, California counties

California counties ranked by the share of all residents who are Italian ancestry (2023 American Community Survey). A concentration measure: Italian residents as a percentage of total population. This list covers the 58 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

RANKPLACESTATEPOPITALIAN SHAREVS 2000

01Sonoma County, CACA486,4448.0%–

02El Dorado County, CACA192,3237.1%–

03Marin County, CACA253,6947.0%–

04Nevada County, CACA101,9116.8%–

05Placer County, CACA442,0816.7%–

06Plumas County, CACA18,5836.6%–

07Tuolumne County, CACA53,1606.5%–

08Mariposa County, CACA16,9186.4%–

09San Luis Obispo County, CACA282,3676.3%–

10Amador County, CACA41,8766.3%–

11Calaveras County, CACA46,6056.2%–

12Santa Cruz County, CACA258,8526.1%–

13Mono County, CACA12,5055.8%–

14Siskiyou County, CACA42,0135.6%–

15Napa County, CACA132,9495.5%–

16San Benito County, CACA70,0825.5%–

17Humboldt County, CACA131,6475.5%–

18Butte County, CACA209,2115.4%–

19Shasta County, CACA181,6485.3%–

20Lake County, CACA67,7725.2%–

21San Mateo County, CACA743,5685.0%–

22Contra Costa County, CACA1,170,0704.7%–

23Mendocino County, CACA88,1224.6%–

24Inyo County, CACA18,1584.5%–

25San Francisco County, CACA826,0794.5%–

26Yolo County, CACA224,4104.3%–

27Ventura County, CACA830,8514.2%–

28San Diego County, CACA3,282,2484.2%–

29Glenn County, CACA28,1414.1%–

30Modoc County, CACA8,4264.1%–

31Santa Barbara County, CACA442,0653.9%–

32Sacramento County, CACA1,618,4603.7%–

33San Joaquin County, CACA823,8153.7%–

34Orange County, CACA3,149,5073.6%–

35Solano County, CACA455,3763.6%–

36Monterey County, CACA433,7293.5%–

37Tehama County, CACA64,6653.3%–

38Santa Clara County, CACA1,914,3913.3%–

39Del Norte County, CACA26,4103.2%–

40Lassen County, CACA28,1173.1%–

41Stanislaus County, CACA557,7193.0%–

42Riverside County, CACA2,544,9163.0%–

43Alameda County, CACA1,636,6303.0%–

44Sierra County, CACA3,0982.9%–

45Yuba County, CACA88,6912.8%–

46Madera County, CACA167,9272.7%–

47Alpine County, CACA1,0432.6%–

48Los Angeles County, CACA9,694,9342.5%–

49Colusa County, CACA21,8362.5%–

50Fresno County, CACA1,035,4562.4%–

51Sutter County, CACA98,7872.3%–

52San Bernardino County, CACA2,224,0912.2%–

53Trinity County, CACA15,7202.2%–

54Kern County, CACA927,0681.9%–

55Kings County, CACA154,3271.9%–

56Merced County, CACA297,2601.8%–

57Tulare County, CACA485,1461.4%–

58Imperial County, CACA181,4110.7%–

SHOWING 1–58 OF 58

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