RANKING · 2010 CENSUS · 58 SHOWN OF 58

Largest American population, California counties · 2010

California counties ranked by the number of residents who are American ancestry, from the 2010 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 5,698.

American ancestry: full group profile →

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SAME RANKING BYCities States Metros

RELATEDHighest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN POPULATIONVS –

01Los Angeles County, CACA9,694,934207,551–

02Orange County, CACA3,149,50784,492–

03San Diego County, CACA3,282,24876,031–

04Riverside County, CACA2,544,91653,424–

05San Bernardino County, CACA2,224,09153,059–

06Ventura County, CACA830,85133,594–

07Sacramento County, CACA1,618,46032,678–

08Santa Clara County, CACA1,914,39125,124–

09Contra Costa County, CACA1,170,07024,136–

10Kern County, CACA927,06822,284–

11Alameda County, CACA1,636,63020,054–

12Stanislaus County, CACA557,71916,650–

13Butte County, CACA209,21116,200–

14San Joaquin County, CACA823,81514,961–

15Fresno County, CACA1,035,45614,898–

16Shasta County, CACA181,64813,920–

17Sonoma County, CACA486,44413,241–

18Placer County, CACA442,08112,633–

19Tulare County, CACA485,14611,215–

20San Mateo County, CACA743,56811,173–

21Santa Barbara County, CACA442,06510,185–

22San Luis Obispo County, CACA282,3679,767–

23Solano County, CACA455,3769,146–

24San Francisco County, CACA826,0798,041–

25El Dorado County, CACA192,3237,520–

26Monterey County, CACA433,7296,346–

27Santa Cruz County, CACA258,8526,274–

28Merced County, CACA297,2605,875–

29Yuba County, CACA88,6915,698–

30Sutter County, CACA98,7875,520–

31Marin County, CACA253,6945,316–

32Humboldt County, CACA131,6474,598–

33Kings County, CACA154,3274,339–

34Nevada County, CACA101,9114,132–

35Yolo County, CACA224,4104,087–

36Tehama County, CACA64,6653,996–

37Napa County, CACA132,9493,623–

38Mendocino County, CACA88,1223,046–

39Madera County, CACA167,9272,764–

40Tuolumne County, CACA53,1602,360–

41Calaveras County, CACA46,6052,323–

42Lake County, CACA67,7722,208–

43Imperial County, CACA181,4112,074–

44Siskiyou County, CACA42,0131,751–

45Del Norte County, CACA26,4101,588–

46Amador County, CACA41,8761,529–

47Glenn County, CACA28,1411,345–

48Lassen County, CACA28,1171,321–

49San Benito County, CACA70,0821,236–

50Colusa County, CACA21,8361,035–

51Inyo County, CACA18,158731–

52Plumas County, CACA18,583694–

53Mariposa County, CACA16,918598–

54Trinity County, CACA15,720352–

55Mono County, CACA12,505308–

56Modoc County, CACA8,426253–

57Sierra County, CACA3,098123–

58Alpine County, CACA1,04315–

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

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