RANKING · 2020 CENSUS · 56 SHOWN OF 56

Largest Puerto Rican population, California counties · 2020

California counties ranked by the number of residents who are Puerto Rican origin, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 56 counties in California that qualify, ranked against each other statewide.

Puerto Rican Americans: full group profile →

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN POPULATIONVS 2010

01Los Angeles County, CACA9,694,93448,846+13%

02San Diego County, CACA3,282,24825,121+56%

03San Bernardino County, CACA2,224,09118,987+50%

04Riverside County, CACA2,544,91618,061+42%

05Alameda County, CACA1,636,63012,708+14%

06Orange County, CACA3,149,50712,581+15%

07Sacramento County, CACA1,618,46011,742+47%

08Contra Costa County, CACA1,170,0709,770+69%

09Santa Clara County, CACA1,914,3919,471+32%

10San Joaquin County, CACA823,8155,670+35%

11San Francisco County, CACA826,0794,990+39%

12Solano County, CACA455,3764,966+56%

13Kern County, CACA927,0684,889+23%

14San Mateo County, CACA743,5683,795−6%

15Fresno County, CACA1,035,4563,794+78%

16Stanislaus County, CACA557,7193,755+14%

17Ventura County, CACA830,8513,613+33%

18Placer County, CACA442,0812,907+111%

19Monterey County, CACA433,7292,597+41%

20Sonoma County, CACA486,4442,363+47%

21Santa Barbara County, CACA442,0651,916+36%

22Tulare County, CACA485,1461,375+28%

23San Luis Obispo County, CACA282,3671,251+82%

24Yolo County, CACA224,410992−4%

25El Dorado County, CACA192,323891+91%

26Santa Cruz County, CACA258,852862+189%

27Napa County, CACA132,949855+250%

28Butte County, CACA209,211798+8%

29San Benito County, CACA70,082794+540%

30Marin County, CACA253,694758−11%

31Yuba County, CACA88,691736+76%

32Imperial County, CACA181,411712+45%

33Kings County, CACA154,327611−25%

34Shasta County, CACA181,648606+59%

35Merced County, CACA297,260550−30%

36Humboldt County, CACA131,647531+387%

37Sutter County, CACA98,787461+30%

38Madera County, CACA167,927398−46%

39Nevada County, CACA101,911384−45%

40Mendocino County, CACA88,122365+78%

41Tuolumne County, CACA53,160247+56%

42Amador County, CACA41,876175+36%

43Del Norte County, CACA26,410145+39%

44Siskiyou County, CACA42,013139+209%

45Mariposa County, CACA16,918117–

46Plumas County, CACA18,583115+326%

47Calaveras County, CACA46,605101+226%

48Lake County, CACA67,77286−67%

49Glenn County, CACA28,14174+1%

50Tehama County, CACA64,66559−71%

51Colusa County, CACA21,83634−33%

52Inyo County, CACA18,15830+0%

53Lassen County, CACA28,11717−93%

54Mono County, CACA12,50515+25%

55Modoc County, CACA8,42610+400%

56Trinity County, CACA15,7202−93%

SHOWING 1–56 OF 56

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS