RANKING · 2010 CENSUS · 58 SHOWN OF 58

Fewest graduate degrees, California counties · 2010

California counties with the smallest share of adults 25+ holding a graduate or professional degree (2010 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

RANKPLACESTATEPOPGRADUATE DEGREEVS 2000

01Colusa County, CACA21,8362.9%+4%

02Yuba County, CACA88,6913.1%−12%

03Kings County, CACA154,3273.3%+20%

04Modoc County, CACA8,4263.3%−7%

05Tehama County, CACA64,6653.8%+30%

06Lassen County, CACA28,1173.9%+30%

07Imperial County, CACA181,4114.0%+8%

08Trinity County, CACA15,7204.1%−18%

09Merced County, CACA297,2604.1%+19%

10Tulare County, CACA485,1464.2%+13%

11Madera County, CACA167,9274.3%+12%

12Glenn County, CACA28,1414.3%+50%

13Del Norte County, CACA26,4104.3%+45%

14Lake County, CACA67,7724.7%+4%

15Kern County, CACA927,0684.8%+9%

16San Benito County, CACA70,0825.1%+0%

17Stanislaus County, CACA557,7195.1%+16%

18San Joaquin County, CACA823,8155.3%+20%

19Sutter County, CACA98,7875.6%+26%

20Amador County, CACA41,8765.8%−3%

21Tuolumne County, CACA53,1606.2%+4%

22Fresno County, CACA1,035,4566.3%+13%

23San Bernardino County, CACA2,224,0916.3%+14%

24Shasta County, CACA181,6486.4%+21%

25Mariposa County, CACA16,9186.4%+10%

26Calaveras County, CACA46,6056.6%+16%

27Sierra County, CACA3,0987.0%+22%

28Riverside County, CACA2,544,9167.2%+21%

29Plumas County, CACA18,5837.3%+26%

30Solano County, CACA455,3767.3%+15%

31Siskiyou County, CACA42,0137.4%+25%

32Inyo County, CACA18,1587.5%+13%

33Butte County, CACA209,2118.1%+16%

34Humboldt County, CACA131,6478.6%+17%

35Mendocino County, CACA88,1228.7%+10%

36Sacramento County, CACA1,618,4608.9%+10%

37Monterey County, CACA433,7299.2%+5%

38Los Angeles County, CACA9,694,9349.9%+13%

39El Dorado County, CACA192,32310.1%+20%

40Napa County, CACA132,94910.2%+8%

41Nevada County, CACA101,91110.7%+22%

42Placer County, CACA442,08110.9%+14%

43Sonoma County, CACA486,44411.1%+14%

44Ventura County, CACA830,85111.2%+17%

45Mono County, CACA12,50511.3%+14%

46San Luis Obispo County, CACA282,36711.4%+22%

47Santa Barbara County, CACA442,06512.4%+9%

48Orange County, CACA3,149,50712.4%+20%

49San Diego County, CACA3,282,24812.7%+17%

50Alpine County, CACA1,04313.3%+59%

51Contra Costa County, CACA1,170,07013.7%+12%

52Santa Cruz County, CACA258,85213.9%+12%

53Alameda County, CACA1,636,63016.3%+19%

54San Mateo County, CACA743,56817.0%+17%

55Yolo County, CACA224,41017.4%+9%

56Santa Clara County, CACA1,914,39119.6%+19%

57San Francisco County, CACA826,07919.7%+20%

58Marin County, CACA253,69422.7%+10%

SHOWING 1–58 OF 58

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