RANKING · 2024 ACS · 54 SHOWN OF 54

Highest Puerto Rican population share, California counties

California counties ranked by the share of all residents who are Puerto Rican origin (2023 American Community Survey). A concentration measure: Puerto Rican residents as a percentage of total population. This list covers the 54 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 Largest Cuban population Highest Cuban population share Largest Dominican population

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN SHAREVS 2000

01Tuolumne County, CACA53,1601.5%–

02Yuba County, CACA88,6911.0%–

03Inyo County, CACA18,1580.8%–

04Solano County, CACA455,3760.8%–

05San Diego County, CACA3,282,2480.8%–

06San Joaquin County, CACA823,8150.7%–

07Sacramento County, CACA1,618,4600.7%–

08Placer County, CACA442,0810.7%–

09Riverside County, CACA2,544,9160.7%–

10Sutter County, CACA98,7870.7%–

11Alameda County, CACA1,636,6300.7%–

12Plumas County, CACA18,5830.7%–

13San Francisco County, CACA826,0790.7%–

14Contra Costa County, CACA1,170,0700.7%–

15San Bernardino County, CACA2,224,0910.7%–

16Kings County, CACA154,3270.7%–

17Calaveras County, CACA46,6050.7%–

18Nevada County, CACA101,9110.6%–

19Tehama County, CACA64,6650.6%–

20San Mateo County, CACA743,5680.6%–

21Napa County, CACA132,9490.6%–

22Mariposa County, CACA16,9180.6%–

23Stanislaus County, CACA557,7190.6%–

24Humboldt County, CACA131,6470.6%–

25Monterey County, CACA433,7290.6%–

26Ventura County, CACA830,8510.5%–

27Kern County, CACA927,0680.5%–

28Santa Cruz County, CACA258,8520.5%–

29San Benito County, CACA70,0820.5%–

30Marin County, CACA253,6940.5%–

31Los Angeles County, CACA9,694,9340.5%–

32Siskiyou County, CACA42,0130.5%–

33Sonoma County, CACA486,4440.5%–

34Lassen County, CACA28,1170.4%–

35San Luis Obispo County, CACA282,3670.4%–

36El Dorado County, CACA192,3230.4%–

37Santa Clara County, CACA1,914,3910.4%–

38Fresno County, CACA1,035,4560.4%–

39Amador County, CACA41,8760.4%–

40Del Norte County, CACA26,4100.4%–

41Orange County, CACA3,149,5070.4%–

42Madera County, CACA167,9270.4%–

43Santa Barbara County, CACA442,0650.4%–

44Shasta County, CACA181,6480.3%–

45Butte County, CACA209,2110.3%–

46Merced County, CACA297,2600.3%–

47Yolo County, CACA224,4100.3%–

48Mendocino County, CACA88,1220.3%–

49Tulare County, CACA485,1460.3%–

50Lake County, CACA67,7720.3%–

51Imperial County, CACA181,4110.2%–

52Trinity County, CACA15,7200.1%–

53Glenn County, CACA28,1410.0%–

54Colusa County, CACA21,8360.0%–

SHOWING 1–54 OF 54

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