RANKING · 2010 CENSUS · 55 SHOWN OF 55

Largest Puerto Rican population, California counties · 2010

California counties ranked by the number of residents who are Puerto Rican 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.

CaliforniaAll states All rankings

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 2000

01Los Angeles County, CACA9,694,93443,116–

02San Diego County, CACA3,282,24816,103–

03Riverside County, CACA2,544,91612,724–

04San Bernardino County, CACA2,224,09112,640–

05Alameda County, CACA1,636,63011,107–

06Orange County, CACA3,149,50710,924–

07Sacramento County, CACA1,618,4607,978–

08Santa Clara County, CACA1,914,3917,171–

09Contra Costa County, CACA1,170,0705,767–

10San Joaquin County, CACA823,8154,187–

11San Mateo County, CACA743,5684,025–

12Kern County, CACA927,0683,963–

13San Francisco County, CACA826,0793,592–

14Stanislaus County, CACA557,7193,286–

15Solano County, CACA455,3763,185–

16Ventura County, CACA830,8512,717–

17Fresno County, CACA1,035,4562,130–

18Monterey County, CACA433,7291,845–

19Sonoma County, CACA486,4441,612–

20Santa Barbara County, CACA442,0651,406–

21Placer County, CACA442,0811,375–

22Tulare County, CACA485,1461,072–

23Yolo County, CACA224,4101,032–

24Marin County, CACA253,694853–

25Kings County, CACA154,327812–

26Merced County, CACA297,260781–

27Butte County, CACA209,211736–

28Madera County, CACA167,927734–

29Nevada County, CACA101,911694–

30San Luis Obispo County, CACA282,367687–

31Imperial County, CACA181,411492–

32El Dorado County, CACA192,323466–

33Yuba County, CACA88,691418–

34Shasta County, CACA181,648381–

35Sutter County, CACA98,787355–

36Santa Cruz County, CACA258,852298–

37Lake County, CACA67,772259–

38Lassen County, CACA28,117246–

39Napa County, CACA132,949244–

40Mendocino County, CACA88,122205–

41Tehama County, CACA64,665203–

42Tuolumne County, CACA53,160158–

43Amador County, CACA41,876129–

44San Benito County, CACA70,082124–

45Humboldt County, CACA131,647109–

46Del Norte County, CACA26,410104–

47Glenn County, CACA28,14173–

48Colusa County, CACA21,83651–

49Siskiyou County, CACA42,01345–

50Calaveras County, CACA46,60531–

51Trinity County, CACA15,72030–

52Inyo County, CACA18,15830–

53Plumas County, CACA18,58327–

54Mono County, CACA12,50512–

55Modoc County, CACA8,4262–

SHOWING 1–55 OF 55

Download CSV (full list, 55 rows)

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