RANKING · 2010 CENSUS · 48 SHOWN OF 48

Largest Iranian population, California counties · 2010

California counties ranked by the number of residents who are Iranian 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 48 counties in California that qualify, ranked against each other statewide. The median across all 48 is 493.

Iranian 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

RANKPLACESTATEPOPIRANIAN POPULATIONVS –

01Los Angeles County, CACA9,694,93492,297–

02Orange County, CACA3,149,50730,670–

03Santa Clara County, CACA1,914,39115,726–

04San Diego County, CACA3,282,24813,154–

05Contra Costa County, CACA1,170,0707,236–

06Alameda County, CACA1,636,6306,055–

07San Mateo County, CACA743,5684,741–

08Sacramento County, CACA1,618,4604,143–

09Ventura County, CACA830,8513,944–

10San Bernardino County, CACA2,224,0913,630–

11Riverside County, CACA2,544,9163,575–

12San Francisco County, CACA826,0792,263–

13Marin County, CACA253,6942,253–

14Placer County, CACA442,0811,735–

15Fresno County, CACA1,035,4561,392–

16Stanislaus County, CACA557,7191,333–

17Sonoma County, CACA486,4441,130–

18Santa Barbara County, CACA442,0651,002–

19San Joaquin County, CACA823,815970–

20Solano County, CACA455,376834–

21Yolo County, CACA224,410784–

22Kern County, CACA927,068724–

23El Dorado County, CACA192,323646–

24Santa Cruz County, CACA258,852493–

25Merced County, CACA297,260307–

26Monterey County, CACA433,729299–

27San Luis Obispo County, CACA282,367291–

28Tehama County, CACA64,665231–

29Butte County, CACA209,211224–

30Tulare County, CACA485,146189–

31Shasta County, CACA181,648188–

32Siskiyou County, CACA42,013110–

33Humboldt County, CACA131,647108–

34Napa County, CACA132,949103–

35San Benito County, CACA70,08297–

36Del Norte County, CACA26,41096–

37Trinity County, CACA15,72095–

38Amador County, CACA41,87693–

39Mendocino County, CACA88,12284–

40Nevada County, CACA101,91172–

41Lassen County, CACA28,11770–

42Sutter County, CACA98,78761–

43Lake County, CACA67,77253–

44Madera County, CACA167,92746–

45Kings County, CACA154,32744–

46Tuolumne County, CACA53,16033–

47Mono County, CACA12,50520–

48Mariposa County, CACA16,91812–

SHOWING 1–48 OF 48

Download CSV (full list, 48 rows)

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