RANKING · 2024 ACS · 56 SHOWN OF 56

Highest South American population share, California counties

California counties ranked by the share of all residents who are South American origin (2023 American Community Survey). A concentration measure: South American residents as a percentage of total population. This list covers the 56 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 SHAREVS 2000

01Alpine County, CACA1,0432.4%–

02San Mateo County, CACA743,5681.8%–

03Marin County, CACA253,6941.8%–

04San Francisco County, CACA826,0791.6%–

05Los Angeles County, CACA9,694,9341.6%–

06Contra Costa County, CACA1,170,0701.5%–

07Orange County, CACA3,149,5071.4%–

08Santa Clara County, CACA1,914,3911.3%–

09Alameda County, CACA1,636,6301.1%–

10Tuolumne County, CACA53,1601.1%–

11Amador County, CACA41,8761.1%–

12Yolo County, CACA224,4101.1%–

13San Bernardino County, CACA2,224,0911.0%–

14San Diego County, CACA3,282,2481.0%–

15Riverside County, CACA2,544,9161.0%–

16Ventura County, CACA830,8511.0%–

17Napa County, CACA132,9491.0%–

18Inyo County, CACA18,1580.9%–

19Santa Barbara County, CACA442,0650.9%–

20Placer County, CACA442,0810.8%–

21Solano County, CACA455,3760.8%–

22San Benito County, CACA70,0820.8%–

23Sonoma County, CACA486,4440.8%–

24Monterey County, CACA433,7290.7%–

25Modoc County, CACA8,4260.7%–

26Santa Cruz County, CACA258,8520.7%–

27Sacramento County, CACA1,618,4600.6%–

28Mendocino County, CACA88,1220.6%–

29El Dorado County, CACA192,3230.6%–

30Kern County, CACA927,0680.5%–

31San Joaquin County, CACA823,8150.5%–

32Humboldt County, CACA131,6470.5%–

33Tehama County, CACA64,6650.5%–

34San Luis Obispo County, CACA282,3670.5%–

35Lake County, CACA67,7720.5%–

36Nevada County, CACA101,9110.4%–

37Yuba County, CACA88,6910.3%–

38Fresno County, CACA1,035,4560.3%–

39Butte County, CACA209,2110.3%–

40Mariposa County, CACA16,9180.3%–

41Tulare County, CACA485,1460.3%–

42Stanislaus County, CACA557,7190.3%–

43Sutter County, CACA98,7870.3%–

44Del Norte County, CACA26,4100.3%–

45Kings County, CACA154,3270.3%–

46Merced County, CACA297,2600.2%–

47Shasta County, CACA181,6480.2%–

48Plumas County, CACA18,5830.2%–

49Imperial County, CACA181,4110.2%–

50Trinity County, CACA15,7200.2%–

51Calaveras County, CACA46,6050.2%–

52Siskiyou County, CACA42,0130.2%–

53Madera County, CACA167,9270.2%–

54Lassen County, CACA28,1170.1%–

55Mono County, CACA12,5050.1%–

56Glenn County, CACA28,1410.0%–

SHOWING 1–56 OF 56

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