RANKING · 2024 ACS · 58 SHOWN OF 58

Largest Mexican population, California counties

California counties ranked by the number of residents who are Mexican origin, 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 58 counties in California that qualify, ranked against each other statewide.

Mexican Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDHighest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share Largest Dominican population

YEAR2010 2020 2024

RANKPLACESTATEPOPMEXICAN POPULATIONVS 2010

01Los Angeles County, CACA9,694,9343,458,834−2%

02Riverside County, CACA2,544,9161,090,978+32%

03San Bernardino County, CACA2,224,0911,027,390+24%

04San Diego County, CACA3,282,248975,588+16%

05Orange County, CACA3,149,507897,450+6%

06Fresno County, CACA1,035,456508,916+21%

07Kern County, CACA927,068461,006+30%

08Santa Clara County, CACA1,914,391378,659−2%

09Ventura County, CACA830,851322,303+14%

10Sacramento County, CACA1,618,460308,431+29%

11Tulare County, CACA485,146297,217+22%

12San Joaquin County, CACA823,815296,751+32%

13Alameda County, CACA1,636,630267,768+9%

14Stanislaus County, CACA557,719254,678+33%

15Monterey County, CACA433,729246,333+22%

16Contra Costa County, CACA1,170,070210,573+23%

17Santa Barbara County, CACA442,065191,409+23%

18Merced County, CACA297,260175,488+39%

19Imperial County, CACA181,411149,370+15%

20Sonoma County, CACA486,444117,693+19%

21San Mateo County, CACA743,568106,631−5%

22Solano County, CACA455,376100,502+33%

23Madera County, CACA167,92792,528+28%

24Kings County, CACA154,32783,201+19%

25Santa Cruz County, CACA258,85280,460+11%

26San Francisco County, CACA826,07965,825+7%

27Yolo County, CACA224,41063,224+29%

28San Luis Obispo County, CACA282,36759,002+32%

29Placer County, CACA442,08145,742+47%

30Napa County, CACA132,94941,157+13%

31San Benito County, CACA70,08237,977+37%

32Butte County, CACA209,21135,424+43%

33Sutter County, CACA98,78728,398+19%

34Mendocino County, CACA88,12222,098+32%

35Yuba County, CACA88,69121,803+42%

36El Dorado County, CACA192,32320,294+26%

37Marin County, CACA253,69420,271+9%

38Tehama County, CACA64,66516,385+42%

39Shasta County, CACA181,64816,024+52%

40Humboldt County, CACA131,64714,866+45%

41Lake County, CACA67,77214,276+61%

42Colusa County, CACA21,83613,295+31%

43Glenn County, CACA28,14112,355+33%

44Nevada County, CACA101,9117,203+16%

45Lassen County, CACA28,1175,174+5%

46Calaveras County, CACA46,6055,036+29%

47Siskiyou County, CACA42,0134,617+22%

48Amador County, CACA41,8764,603+29%

49Tuolumne County, CACA53,1604,368−9%

50Del Norte County, CACA26,4104,209−4%

51Inyo County, CACA18,1583,492+19%

52Mono County, CACA12,5053,193+15%

53Mariposa County, CACA16,9181,852+34%

54Plumas County, CACA18,5831,286−10%

55Modoc County, CACA8,4261,115−2%

56Trinity County, CACA15,720594−16%

57Sierra County, CACA3,098283+37%

58Alpine County, CACA1,043149+610%

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

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