RANKING · 2024 ACS · 47 SHOWN OF 47

Largest Iranian population, California counties

California counties ranked by the number of residents who are Iranian ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 47 counties in California that qualify, ranked against each other statewide.

Iranian 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

RANKPLACESTATEPOPIRANIAN POPULATIONVS 2010

01Los Angeles County, CACA9,694,93486,430−6%

02Orange County, CACA3,149,50739,737+30%

03Santa Clara County, CACA1,914,39120,620+31%

04San Diego County, CACA3,282,24817,138+30%

05Contra Costa County, CACA1,170,0708,957+24%

06Alameda County, CACA1,636,6307,886+30%

07Sacramento County, CACA1,618,4605,794+40%

08San Mateo County, CACA743,5685,061+7%

09Ventura County, CACA830,8515,003+27%

10Riverside County, CACA2,544,9164,533+27%

11San Francisco County, CACA826,0793,905+73%

12San Bernardino County, CACA2,224,0912,764−24%

13Marin County, CACA253,6942,247−0%

14Placer County, CACA442,0811,822+5%

15Santa Barbara County, CACA442,0651,497+49%

16San Joaquin County, CACA823,8151,383+43%

17Fresno County, CACA1,035,4561,056−24%

18Stanislaus County, CACA557,7191,027−23%

19Sonoma County, CACA486,444872−23%

20Santa Cruz County, CACA258,852864+75%

21Yolo County, CACA224,410803+2%

22El Dorado County, CACA192,323615−5%

23Monterey County, CACA433,729593+98%

24Solano County, CACA455,376492−41%

25San Luis Obispo County, CACA282,367478+64%

26Kern County, CACA927,068417−42%

27Tulare County, CACA485,146374+98%

28Merced County, CACA297,260293−5%

29Napa County, CACA132,949236+129%

30Shasta County, CACA181,648228+21%

31Butte County, CACA209,211166−26%

32Madera County, CACA167,927137+198%

33Humboldt County, CACA131,647103−5%

34Nevada County, CACA101,91167−7%

35Lake County, CACA67,77259+11%

36Lassen County, CACA28,11759−16%

37Yuba County, CACA88,69149–

38Kings County, CACA154,32746+5%

39Sutter County, CACA98,78741−33%

40Mendocino County, CACA88,12234−60%

41Del Norte County, CACA26,41014−85%

42Imperial County, CACA181,41113–

43Siskiyou County, CACA42,01313−88%

44Mariposa County, CACA16,91812+0%

45Tuolumne County, CACA53,16010−70%

46Calaveras County, CACA46,6056–

47Plumas County, CACA18,5835–

SHOWING 1–47 OF 47

Download CSV (full list, 47 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES