RANKING · 2000 CENSUS · 58 SHOWN OF 58

Least educated, California counties · 2000

California counties with the smallest share of adults 25+ holding a bachelor's degree or higher (2000 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

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 1990

01Yuba County, CACA88,69110.3%+9%

02Imperial County, CACA181,41110.3%+6%

03Kings County, CACA154,32710.4%+16%

04Colusa County, CACA21,83610.6%−4%

05Lassen County, CACA28,11710.7%−8%

06Glenn County, CACA28,14110.7%+13%

07Del Norte County, CACA26,41011.0%+10%

08Merced County, CACA297,26011.0%−8%

09Tehama County, CACA64,66511.3%+10%

10Tulare County, CACA485,14611.5%−3%

11Madera County, CACA167,92712.0%+3%

12Lake County, CACA67,77212.1%+13%

13Modoc County, CACA8,42612.4%+11%

14Kern County, CACA927,06813.5%+2%

15Stanislaus County, CACA557,71914.1%+9%

16San Joaquin County, CACA823,81514.5%+10%

17Sutter County, CACA98,78715.3%−1%

18Trinity County, CACA15,72015.5%+21%

19San Bernardino County, CACA2,224,09115.9%+7%

20Tuolumne County, CACA53,16016.1%+9%

21Shasta County, CACA181,64816.6%+21%

22Riverside County, CACA2,544,91616.6%+14%

23Amador County, CACA41,87616.6%+19%

24San Benito County, CACA70,08217.1%+19%

25Calaveras County, CACA46,60517.1%+19%

26Inyo County, CACA18,15817.1%+27%

27Sierra County, CACA3,09817.2%+8%

28Plumas County, CACA18,58317.5%+16%

29Fresno County, CACA1,035,45617.5%+4%

30Siskiyou County, CACA42,01317.7%+25%

31Mariposa County, CACA16,91820.2%+20%

32Mendocino County, CACA88,12220.2%+14%

33Solano County, CACA455,37621.4%+14%

34Butte County, CACA209,21121.8%+12%

35Monterey County, CACA433,72922.5%+4%

36Humboldt County, CACA131,64723.0%+15%

37Sacramento County, CACA1,618,46024.8%+8%

38Los Angeles County, CACA9,694,93424.9%+11%

39Nevada County, CACA101,91126.1%+18%

40Napa County, CACA132,94926.4%+18%

41El Dorado County, CACA192,32326.5%+28%

42San Luis Obispo County, CACA282,36726.7%+16%

43Ventura County, CACA830,85126.9%+17%

44Alpine County, CACA1,04328.2%+18%

45Sonoma County, CACA486,44428.5%+16%

46Mono County, CACA12,50528.9%+32%

47Santa Barbara County, CACA442,06529.4%+10%

48San Diego County, CACA3,282,24829.5%+17%

49Placer County, CACA442,08130.3%+34%

50Orange County, CACA3,149,50730.8%+11%

51Yolo County, CACA224,41034.1%+13%

52Santa Cruz County, CACA258,85234.2%+15%

53Alameda County, CACA1,636,63034.9%+21%

54Contra Costa County, CACA1,170,07035.0%+11%

55San Mateo County, CACA743,56839.0%+25%

56Santa Clara County, CACA1,914,39140.5%+24%

57San Francisco County, CACA826,07945.0%+28%

58Marin County, CACA253,69451.3%+17%

SHOWING 1–58 OF 58

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS