RANKING · 2020 CENSUS · 55 SHOWN OF 55

Largest South American population, California counties · 2020

California counties ranked by the number of residents who are South American origin, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 55 counties in California that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSOUTH AMERICAN POPULATIONVS 2000

01Los Angeles County, CACA9,694,934134,666–

02Orange County, CACA3,149,50737,934–

03San Diego County, CACA3,282,24827,312–

04Riverside County, CACA2,544,91622,330–

05San Bernardino County, CACA2,224,09121,340–

06Santa Clara County, CACA1,914,39119,173–

07Contra Costa County, CACA1,170,07015,523–

08Alameda County, CACA1,636,63014,231–

09San Mateo County, CACA743,56811,991–

10San Francisco County, CACA826,07911,093–

11Ventura County, CACA830,8518,418–

12Sacramento County, CACA1,618,4607,777–

13Santa Barbara County, CACA442,0654,015–

14Marin County, CACA253,6943,545–

15Solano County, CACA455,3763,190–

16Placer County, CACA442,0813,012–

17San Joaquin County, CACA823,8152,970–

18Sonoma County, CACA486,4442,954–

19Kern County, CACA927,0682,918–

20Fresno County, CACA1,035,4562,699–

21Monterey County, CACA433,7292,676–

22Yolo County, CACA224,4102,329–

23Stanislaus County, CACA557,7191,765–

24Santa Cruz County, CACA258,8521,637–

25San Luis Obispo County, CACA282,3671,186–

26Tulare County, CACA485,1461,062–

27El Dorado County, CACA192,323843–

28Tuolumne County, CACA53,160763–

29Napa County, CACA132,949751–

30Merced County, CACA297,260750–

31Imperial County, CACA181,411743–

32Humboldt County, CACA131,647626–

33Shasta County, CACA181,648508–

34San Benito County, CACA70,082396–

35Mendocino County, CACA88,122386–

36Butte County, CACA209,211363–

37Kings County, CACA154,327343–

38Madera County, CACA167,927271–

39Nevada County, CACA101,911229–

40Yuba County, CACA88,691220–

41Lake County, CACA67,772144–

42Siskiyou County, CACA42,013138–

43Amador County, CACA41,876105–

44Sutter County, CACA98,787103–

45Calaveras County, CACA46,60564–

46Del Norte County, CACA26,41063–

47Alpine County, CACA1,04362–

48Inyo County, CACA18,15849–

49Plumas County, CACA18,58339–

50Tehama County, CACA64,66534–

51Mariposa County, CACA16,91827–

52Modoc County, CACA8,42616–

53Glenn County, CACA28,14114–

54Colusa County, CACA21,8369–

55Mono County, CACA12,5051–

SHOWING 1–55 OF 55

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