RANKING · 2024 ACS · 58 SHOWN OF 58

Most racially diverse, California counties

California counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Solano County, CACA455,37694–

02Alameda County, CACA1,636,63094–

03Contra Costa County, CACA1,170,07091–

04Sacramento County, CACA1,618,46091–

05San Mateo County, CACA743,56889–

06San Francisco County, CACA826,07989–

07San Joaquin County, CACA823,81588–

08Santa Clara County, CACA1,914,39187–

09Orange County, CACA3,149,50787–

10Sutter County, CACA98,78786–

11Yolo County, CACA224,41086–

12San Diego County, CACA3,282,24885–

13Los Angeles County, CACA9,694,93484–

14Yuba County, CACA88,69181–

15Riverside County, CACA2,544,91679–

16Napa County, CACA132,94978–

17San Bernardino County, CACA2,224,09178–

18Ventura County, CACA830,85177–

19Fresno County, CACA1,035,45677–

20Stanislaus County, CACA557,71976–

21Santa Barbara County, CACA442,06575–

22Kern County, CACA927,06873–

23Alpine County, CACA1,04373–

24Santa Cruz County, CACA258,85272–

25Inyo County, CACA18,15872–

26Del Norte County, CACA26,41072–

27Kings County, CACA154,32772–

28Glenn County, CACA28,14171–

29Sonoma County, CACA486,44471–

30Lassen County, CACA28,11770–

31Monterey County, CACA433,72968–

32Mendocino County, CACA88,12268–

33Merced County, CACA297,26067–

34Madera County, CACA167,92767–

35Tehama County, CACA64,66567–

36Placer County, CACA442,08166–

37Marin County, CACA253,69466–

38Butte County, CACA209,21166–

39San Benito County, CACA70,08265–

40Lake County, CACA67,77265–

41San Luis Obispo County, CACA282,36765–

42Colusa County, CACA21,83664–

43Mono County, CACA12,50563–

44Tulare County, CACA485,14661–

45Humboldt County, CACA131,64760–

46Amador County, CACA41,87655–

47El Dorado County, CACA192,32355–

48Siskiyou County, CACA42,01354–

49Mariposa County, CACA16,91853–

50Modoc County, CACA8,42651–

51Shasta County, CACA181,64851–

52Calaveras County, CACA46,60549–

53Trinity County, CACA15,72047–

54Tuolumne County, CACA53,16046–

55Nevada County, CACA101,91142–

56Plumas County, CACA18,58341–

57Imperial County, CACA181,41132–

58Sierra County, CACA3,09831–

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)How this score is calculated

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