RANKING · 1990 CENSUS · 58 SHOWN OF 58

Most graduate degrees, California counties · 1990

California counties ranked by the share of adults 25+ holding a graduate or professional degree (1990 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 –

01Marin County, CACA253,69417.0%–

02Yolo County, CACA224,41013.7%–

03San Francisco County, CACA826,07913.0%–

04Santa Clara County, CACA1,914,39112.0%–

05San Mateo County, CACA743,56811.1%–

06Alameda County, CACA1,636,63010.9%–

07Contra Costa County, CACA1,170,07010.6%–

08Santa Cruz County, CACA258,85210.4%–

09Santa Barbara County, CACA442,06510.0%–

10Orange County, CACA3,149,5079.1%–

11San Diego County, CACA3,282,2488.8%–

12Sonoma County, CACA486,4447.9%–

13Ventura County, CACA830,8517.9%–

14Los Angeles County, CACA9,694,9347.8%–

15Monterey County, CACA433,7297.6%–

16Napa County, CACA132,9497.6%–

17San Luis Obispo County, CACA282,3677.4%–

18Sacramento County, CACA1,618,4607.1%–

19Placer County, CACA442,0816.6%–

20Nevada County, CACA101,9116.5%–

21Butte County, CACA209,2116.0%–

22Humboldt County, CACA131,6475.9%–

23Mendocino County, CACA88,1225.9%–

24Mono County, CACA12,5055.8%–

25El Dorado County, CACA192,3235.8%–

26Mariposa County, CACA16,9185.4%–

27Solano County, CACA455,3765.3%–

28San Bernardino County, CACA2,224,0915.2%–

29Fresno County, CACA1,035,4565.0%–

30Riverside County, CACA2,544,9164.9%–

31Sutter County, CACA98,7874.8%–

32Tuolumne County, CACA53,1604.5%–

33Alpine County, CACA1,0434.3%–

34Plumas County, CACA18,5834.3%–

35Kern County, CACA927,0684.2%–

36San Benito County, CACA70,0824.1%–

37Inyo County, CACA18,1584.1%–

38San Joaquin County, CACA823,8154.1%–

39Shasta County, CACA181,6484.1%–

40Siskiyou County, CACA42,0134.0%–

41Calaveras County, CACA46,6053.9%–

42Stanislaus County, CACA557,7193.9%–

43Madera County, CACA167,9273.9%–

44Sierra County, CACA3,0983.8%–

45Lassen County, CACA28,1173.8%–

46Merced County, CACA297,2603.7%–

47Amador County, CACA41,8763.6%–

48Imperial County, CACA181,4113.6%–

49Tulare County, CACA485,1463.5%–

50Modoc County, CACA8,4263.3%–

51Del Norte County, CACA26,4103.2%–

52Trinity County, CACA15,7203.1%–

53Lake County, CACA67,7722.9%–

54Colusa County, CACA21,8362.8%–

55Tehama County, CACA64,6652.6%–

56Yuba County, CACA88,6912.5%–

57Kings County, CACA154,3272.5%–

58Glenn County, CACA28,1412.3%–

SHOWING 1–58 OF 58

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