RANKING · 2010 CENSUS · 58 SHOWN OF 58

Highest Italian population share, California counties · 2010

California counties ranked by the share of all residents who are Italian ancestry (2010 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. The median across all 58 is 5.0%.

Italian Americans: full group profile →

CaliforniaAll states All rankings

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 –

01Alpine County, CACA1,04311.2%–

02Amador County, CACA41,8769.4%–

03Sonoma County, CACA486,4449.3%–

04Marin County, CACA253,6949.3%–

05Calaveras County, CACA46,6058.9%–

06Tuolumne County, CACA53,1608.7%–

07Sierra County, CACA3,0988.2%–

08Nevada County, CACA101,9118.1%–

09El Dorado County, CACA192,3237.9%–

10Placer County, CACA442,0817.9%–

11Siskiyou County, CACA42,0137.5%–

12Mono County, CACA12,5057.4%–

13San Benito County, CACA70,0827.3%–

14Lake County, CACA67,7727.3%–

15Santa Cruz County, CACA258,8527.2%–

16Plumas County, CACA18,5837.0%–

17San Mateo County, CACA743,5686.9%–

18Mendocino County, CACA88,1226.8%–

19Humboldt County, CACA131,6476.7%–

20Butte County, CACA209,2116.4%–

21Napa County, CACA132,9496.3%–

22Mariposa County, CACA16,9186.2%–

23Contra Costa County, CACA1,170,0706.1%–

24San Luis Obispo County, CACA282,3676.1%–

25Trinity County, CACA15,7205.9%–

26Shasta County, CACA181,6485.4%–

27Ventura County, CACA830,8515.1%–

28Sacramento County, CACA1,618,4605.1%–

29San Joaquin County, CACA823,8155.0%–

30Del Norte County, CACA26,4105.0%–

31San Francisco County, CACA826,0794.9%–

32Yolo County, CACA224,4104.9%–

33Lassen County, CACA28,1174.8%–

34San Diego County, CACA3,282,2484.8%–

35Santa Barbara County, CACA442,0654.7%–

36Santa Clara County, CACA1,914,3914.6%–

37Orange County, CACA3,149,5074.5%–

38Monterey County, CACA433,7294.2%–

39Solano County, CACA455,3764.1%–

40Stanislaus County, CACA557,7194.0%–

41Sutter County, CACA98,7874.0%–

42Riverside County, CACA2,544,9163.9%–

43Tehama County, CACA64,6653.8%–

44Alameda County, CACA1,636,6303.7%–

45Yuba County, CACA88,6913.7%–

46San Bernardino County, CACA2,224,0913.6%–

47Fresno County, CACA1,035,4563.5%–

48Inyo County, CACA18,1583.4%–

49Glenn County, CACA28,1413.4%–

50Madera County, CACA167,9273.3%–

51Colusa County, CACA21,8363.1%–

52Modoc County, CACA8,4263.0%–

53Los Angeles County, CACA9,694,9342.8%–

54Kings County, CACA154,3272.7%–

55Kern County, CACA927,0682.7%–

56Merced County, CACA297,2602.5%–

57Tulare County, CACA485,1461.6%–

58Imperial County, CACA181,4111.2%–

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS