RANKING · 2024 ACS · 58 SHOWN OF 58

Fewest graduate degrees, California counties

California counties with the smallest share of adults 25+ holding a graduate or professional degree (2023 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

01Glenn County, CACA28,1413.0%+5%

02Lassen County, CACA28,1173.0%+1%

03Kings County, CACA154,3274.3%+59%

04Colusa County, CACA21,8364.4%+57%

05Imperial County, CACA181,4114.5%+22%

06Merced County, CACA297,2604.7%+37%

07Tehama County, CACA64,6655.3%+79%

08Tulare County, CACA485,1465.8%+57%

09Lake County, CACA67,7725.8%+28%

10Yuba County, CACA88,6915.9%+68%

11Madera County, CACA167,9276.2%+62%

12Stanislaus County, CACA557,7196.3%+41%

13Kern County, CACA927,0686.5%+45%

14Sutter County, CACA98,7876.6%+49%

15San Benito County, CACA70,0826.8%+33%

16Modoc County, CACA8,4266.9%+94%

17Amador County, CACA41,8767.2%+19%

18San Joaquin County, CACA823,8157.3%+67%

19Shasta County, CACA181,6487.6%+43%

20Calaveras County, CACA46,6057.7%+37%

21Siskiyou County, CACA42,0137.9%+34%

22Del Norte County, CACA26,4108.0%+166%

23Plumas County, CACA18,5838.2%+43%

24Trinity County, CACA15,7208.3%+68%

25San Bernardino County, CACA2,224,0918.4%+52%

26Fresno County, CACA1,035,4568.4%+52%

27Tuolumne County, CACA53,1608.5%+43%

28Solano County, CACA455,3769.1%+43%

29Sierra County, CACA3,0989.1%+57%

30Riverside County, CACA2,544,9169.2%+56%

31Mendocino County, CACA88,12210.1%+27%

32Butte County, CACA209,21111.4%+63%

33Monterey County, CACA433,72911.5%+32%

34Humboldt County, CACA131,64711.9%+60%

35Alpine County, CACA1,04312.0%+42%

36Sacramento County, CACA1,618,46012.4%+53%

37Inyo County, CACA18,15812.5%+89%

38Mono County, CACA12,50512.8%+29%

39Los Angeles County, CACA9,694,93413.0%+48%

40Mariposa County, CACA16,91813.2%+125%

41Ventura County, CACA830,85113.8%+45%

42El Dorado County, CACA192,32313.9%+65%

43Napa County, CACA132,94914.0%+49%

44Sonoma County, CACA486,44414.6%+50%

45Nevada County, CACA101,91114.7%+68%

46Santa Barbara County, CACA442,06514.8%+30%

47Placer County, CACA442,08115.2%+60%

48San Luis Obispo County, CACA282,36715.6%+68%

49Orange County, CACA3,149,50716.3%+57%

50San Diego County, CACA3,282,24817.2%+58%

51Contra Costa County, CACA1,170,07017.7%+46%

52Santa Cruz County, CACA258,85218.6%+49%

53Yolo County, CACA224,41021.7%+36%

54Alameda County, CACA1,636,63023.4%+71%

55San Mateo County, CACA743,56824.1%+65%

56San Francisco County, CACA826,07925.4%+55%

57Marin County, CACA253,69427.6%+34%

58Santa Clara County, CACA1,914,39128.3%+72%

SHOWING 1–58 OF 58

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES