RANKING · 2010 CENSUS · 52 SHOWN OF 52

Highest South American population share, California counties · 2010

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 52 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

01Los Angeles County, CACA9,694,9341.2%–

02San Mateo County, CACA743,5681.2%–

03Contra Costa County, CACA1,170,0701.0%–

04Orange County, CACA3,149,5071.0%–

05San Francisco County, CACA826,0791.0%–

06Marin County, CACA253,6941.0%–

07San Bernardino County, CACA2,224,0910.8%–

08Ventura County, CACA830,8510.8%–

09Santa Clara County, CACA1,914,3910.8%–

10Alameda County, CACA1,636,6300.7%–

11Riverside County, CACA2,544,9160.7%–

12Yolo County, CACA224,4100.6%–

13San Diego County, CACA3,282,2480.5%–

14Napa County, CACA132,9490.5%–

15San Benito County, CACA70,0820.5%–

16Santa Cruz County, CACA258,8520.5%–

17Santa Barbara County, CACA442,0650.5%–

18El Dorado County, CACA192,3230.5%–

19Glenn County, CACA28,1410.5%–

20San Joaquin County, CACA823,8150.4%–

21Monterey County, CACA433,7290.4%–

22Solano County, CACA455,3760.4%–

23San Luis Obispo County, CACA282,3670.4%–

24Sacramento County, CACA1,618,4600.4%–

25Sonoma County, CACA486,4440.3%–

26Kern County, CACA927,0680.3%–

27Mariposa County, CACA16,9180.3%–

28Fresno County, CACA1,035,4560.3%–

29Stanislaus County, CACA557,7190.3%–

30Merced County, CACA297,2600.3%–

31Butte County, CACA209,2110.3%–

32Lake County, CACA67,7720.2%–

33Inyo County, CACA18,1580.2%–

34Placer County, CACA442,0810.2%–

35Sutter County, CACA98,7870.2%–

36Shasta County, CACA181,6480.2%–

37Colusa County, CACA21,8360.2%–

38Imperial County, CACA181,4110.2%–

39Lassen County, CACA28,1170.1%–

40Tuolumne County, CACA53,1600.1%–

41Kings County, CACA154,3270.1%–

42Humboldt County, CACA131,6470.1%–

43Tulare County, CACA485,1460.1%–

44Amador County, CACA41,8760.1%–

45Madera County, CACA167,9270.1%–

46Yuba County, CACA88,6910.1%–

47Siskiyou County, CACA42,0130.1%–

48Plumas County, CACA18,5830.1%–

49Del Norte County, CACA26,4100.1%–

50Nevada County, CACA101,9110.1%–

51Mendocino County, CACA88,1220.1%–

52Calaveras County, CACA46,6050.0%–

SHOWING 1–52 OF 52

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