RANKING · 2024 ACS · 58 SHOWN OF 58

Most unmarried people, California counties

California counties with the highest share of people 15 and over who are not currently married (never-married, widowed, or divorced), as of the 2024 American Community Survey. This list covers the 58 counties in California that qualify, ranked against each other statewide.

CaliforniaAll states All rankings

SAME RANKING BYCities States Metros

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

RANKPLACESTATEPOPUNMARRIED PEOPLEVS 2000

01Trinity County, CACA15,72059.6%+48%

02Humboldt County, CACA131,64759.3%+16%

03San Francisco County, CACA826,07958.0%−2%

04Alpine County, CACA1,04356.6%+5%

05Butte County, CACA209,21156.5%+17%

06Yolo County, CACA224,41056.5%+13%

07Mendocino County, CACA88,12256.2%+24%

08Merced County, CACA297,26055.7%+32%

09Los Angeles County, CACA9,694,93455.6%+16%

10Lassen County, CACA28,11755.5%+85%

11Lake County, CACA67,77255.2%+23%

12Imperial County, CACA181,41154.7%+37%

13Santa Barbara County, CACA442,06554.6%+21%

14Madera County, CACA167,92754.4%+32%

15Santa Cruz County, CACA258,85254.3%+10%

16Kings County, CACA154,32753.7%+58%

17Fresno County, CACA1,035,45653.6%+21%

18Kern County, CACA927,06853.2%+31%

19Del Norte County, CACA26,41052.9%+38%

20Monterey County, CACA433,72952.7%+22%

21San Bernardino County, CACA2,224,09152.7%+24%

22Tulare County, CACA485,14652.4%+26%

23Sacramento County, CACA1,618,46051.9%+11%

24Inyo County, CACA18,15851.8%+24%

25Stanislaus County, CACA557,71951.6%+23%

26Shasta County, CACA181,64851.2%+22%

27Tuolumne County, CACA53,16051.1%+39%

28Solano County, CACA455,37650.9%+23%

29San Luis Obispo County, CACA282,36750.9%+15%

30San Joaquin County, CACA823,81550.7%+22%

31Sonoma County, CACA486,44450.6%+11%

32San Diego County, CACA3,282,24850.5%+11%

33Yuba County, CACA88,69150.0%+15%

34Riverside County, CACA2,544,91649.7%+19%

35Ventura County, CACA830,85149.5%+22%

36Alameda County, CACA1,636,63049.3%+4%

37Orange County, CACA3,149,50748.8%+15%

38Napa County, CACA132,94948.8%+12%

39Plumas County, CACA18,58348.5%+40%

40Tehama County, CACA64,66548.3%+18%

41Modoc County, CACA8,42648.2%+20%

42Sutter County, CACA98,78748.0%+23%

43Siskiyou County, CACA42,01348.0%+20%

44Marin County, CACA253,69447.4%+8%

45Santa Clara County, CACA1,914,39147.2%+9%

46San Mateo County, CACA743,56847.0%+8%

47San Benito County, CACA70,08246.8%+26%

48Contra Costa County, CACA1,170,07046.7%+12%

49Mariposa County, CACA16,91846.5%+10%

50Glenn County, CACA28,14146.3%+18%

51Colusa County, CACA21,83646.3%+17%

52Amador County, CACA41,87646.2%+36%

53Nevada County, CACA101,91145.6%+16%

54Sierra County, CACA3,09844.6%+17%

55Mono County, CACA12,50542.9%−1%

56Calaveras County, CACA46,60542.5%+18%

57Placer County, CACA442,08142.2%+12%

58El Dorado County, CACA192,32341.9%+12%

SHOWING 1–58 OF 58

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