RANKING · 2024 ACS · 56 SHOWN OF 56

Most segregated, California counties

California counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2024 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 56 counties in California that qualify, ranked against each other statewide.

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

RANKPLACESTATEPOPSEGREGATION SCOREVS 2020

01Monterey County, CACA433,72956+2%

02Los Angeles County, CACA9,694,93453−3%

03Madera County, CACA167,92748+3%

04Kern County, CACA927,06847−4%

05Santa Cruz County, CACA258,85244−6%

06Ventura County, CACA830,85143−6%

07Orange County, CACA3,149,50742−1%

08Santa Barbara County, CACA442,06542−3%

09Fresno County, CACA1,035,45640+0%

10San Bernardino County, CACA2,224,09140+2%

11Contra Costa County, CACA1,170,07039−6%

12San Diego County, CACA3,282,24839−6%

13Alameda County, CACA1,636,63038−1%

14Imperial County, CACA181,41138−1%

15Sacramento County, CACA1,618,46038+0%

16San Mateo County, CACA743,56838−6%

17San Joaquin County, CACA823,81537+5%

18Riverside County, CACA2,544,91636+1%

19Santa Clara County, CACA1,914,39136−5%

20Kings County, CACA154,32734−3%

21San Francisco County, CACA826,07934−1%

22Tulare County, CACA485,14634−10%

23Stanislaus County, CACA557,71932+5%

24San Benito County, CACA70,08232−6%

25Marin County, CACA253,69432−3%

26Solano County, CACA455,37631−6%

27Merced County, CACA297,26030+0%

28Sonoma County, CACA486,44429−1%

29Tehama County, CACA64,66528+4%

30Napa County, CACA132,94928−10%

31Lassen County, CACA28,11728−33%

32San Luis Obispo County, CACA282,36725−1%

33Yuba County, CACA88,69124+6%

34Glenn County, CACA28,14123−14%

35Lake County, CACA67,77222+0%

36Amador County, CACA41,87622−17%

37Placer County, CACA442,08121−8%

38Siskiyou County, CACA42,01321−5%

39Sutter County, CACA98,78721+1%

40Mendocino County, CACA88,12221+3%

41Butte County, CACA209,21120−19%

42Humboldt County, CACA131,64720−19%

43Tuolumne County, CACA53,16020−25%

44Plumas County, CACA18,58319−2%

45Yolo County, CACA224,41019−14%

46Calaveras County, CACA46,60519+28%

47El Dorado County, CACA192,32319−23%

48Shasta County, CACA181,64818−8%

49Colusa County, CACA21,83618−16%

50Nevada County, CACA101,91117−25%

51Inyo County, CACA18,15814−22%

52Modoc County, CACA8,42613+17%

53Del Norte County, CACA26,41012−33%

54Trinity County, CACA15,72012+86%

55Mono County, CACA12,50512+7%

56Mariposa County, CACA16,91812−9%

SHOWING 1–56 OF 56

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