RANKING · 2024 ACS · 56 SHOWN OF 56

Least segregated, California counties

California counties with the lowest CensusEasy Segregation Score, where residents of every race are spread most evenly across neighborhoods (2024 ACS). This list covers the 56 counties in California that qualify, ranked against each other statewide. The median across all 56 is 29. Biggest climber in the top 100 since 2020: Lassen County, CA, up 22 places to #26.

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SAME RANKING BYMetros

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

RANKPLACESTATEPOPSEGREGATION SCOREVS 2020

01▲3Mariposa County, CACA16,91812−9%

02▲1Mono County, CACA12,50512+7%

03▼2Trinity County, CACA15,72012+86%

04▲3Del Norte County, CACA26,41012−33%

05▼3Modoc County, CACA8,42613+17%

06Inyo County, CACA18,15814−22%

07▲10Nevada County, CACA101,91117−25%

08▲4Colusa County, CACA21,83618−16%

09▼1Shasta County, CACA181,64818−8%

10▲9El Dorado County, CACA192,32319−23%

11▼6Calaveras County, CACA46,60519+28%

12▲1Yolo County, CACA224,41019−14%

13▼4Plumas County, CACA18,58319−2%

14▲9Tuolumne County, CACA53,16020−25%

15▲5Humboldt County, CACA131,64720−19%

16▲5Butte County, CACA209,21120−19%

17▼7Mendocino County, CACA88,12221+3%

18▼7Sutter County, CACA98,78721+1%

19▼4Siskiyou County, CACA42,01321−5%

20▼2Placer County, CACA442,08121−8%

21▲3Amador County, CACA41,87622−17%

22▼8Lake County, CACA67,772220%

23▲2Glenn County, CACA28,14123−14%

24▼8Yuba County, CACA88,69124+6%

25▼3San Luis Obispo County, CACA282,36725−1%

26▲22Lassen County, CACA28,11728−33%

27▲3Napa County, CACA132,94928−10%

28▼2Tehama County, CACA64,66528+4%

29▼2Sonoma County, CACA486,44429−1%

30▼2Merced County, CACA297,260300%

31▲1Solano County, CACA455,37631−6%

32▼1Marin County, CACA253,69432−3%

33San Benito County, CACA70,08232−6%

34▼5Stanislaus County, CACA557,71932+5%

35▲3Tulare County, CACA485,14634−10%

36▼2San Francisco County, CACA826,07934−1%

37▼1Kings County, CACA154,32734−3%

38▲2Santa Clara County, CACA1,914,39136−5%

39▼2Riverside County, CACA2,544,91636+1%

40▼5San Joaquin County, CACA823,81537+5%

41▲4San Mateo County, CACA743,56838−6%

42▼3Sacramento County, CACA1,618,460380%

43▼2Imperial County, CACA181,41138−1%

44▼1Alameda County, CACA1,636,63038−1%

45▲2San Diego County, CACA3,282,24839−6%

46Contra Costa County, CACA1,170,07039−6%

47▼5San Bernardino County, CACA2,224,09140+2%

48▼4Fresno County, CACA1,035,456400%

49▲1Santa Barbara County, CACA442,06542−3%

50▼1Orange County, CACA3,149,50742−1%

51Ventura County, CACA830,85143−6%

52▲1Santa Cruz County, CACA258,85244−6%

53▲1Kern County, CACA927,06847−4%

54▼2Madera County, CACA167,92748+3%

55▲1Los Angeles County, CACA9,694,93453−3%

56▼1Monterey County, CACA433,72956+2%

SHOWING 1–56 OF 56

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES