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RANKING · 2020 CENSUS · 58 SHOWN OF 58

Least educated, California counties · 2020

California counties with the smallest share of adults 25+ holding a bachelor's degree or higher (2020 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide.

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RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS 2000
01Lassen County, CACA28,11712.7%+2.0 pts
02Merced County, CACA297,26014.1%+3.0 pts
03Glenn County, CACA28,14114.4%+3.7 pts
04Tulare County, CACA485,14614.5%+3.0 pts
05Colusa County, CACA21,83614.9%+4.2 pts
06Kings County, CACA154,32715.0%+4.7 pts
07Madera County, CACA167,92715.2%+3.2 pts
08Imperial County, CACA181,41115.4%+5.1 pts
09Del Norte County, CACA26,41015.4%+4.4 pts
10Lake County, CACA67,77216.7%+4.6 pts
11Kern County, CACA927,06817.1%+3.6 pts
12Tehama County, CACA64,66517.4%+6.1 pts
13Stanislaus County, CACA557,71917.7%+3.6 pts
14Yuba County, CACA88,69118.0%+7.7 pts
15Amador County, CACA41,87618.1%+1.4 pts
16Modoc County, CACA8,42618.2%+5.8 pts
17San Joaquin County, CACA823,81519.2%+4.6 pts
18Trinity County, CACA15,72019.2%+3.7 pts
19Sierra County, CACA3,09819.4%+2.2 pts
20Calaveras County, CACA46,60519.8%+2.7 pts
21Sutter County, CACA98,78720.0%+4.7 pts
22San Benito County, CACA70,08220.1%+3.0 pts
23San Bernardino County, CACA2,224,09121.4%+5.4 pts
24Fresno County, CACA1,035,45622.0%+4.5 pts
25Siskiyou County, CACA42,01322.1%+4.4 pts
26Shasta County, CACA181,64822.1%+5.5 pts
27Tuolumne County, CACA53,16022.3%+6.2 pts
28Riverside County, CACA2,544,91623.2%+6.6 pts
29Mendocino County, CACA88,12224.0%+3.8 pts
30Plumas County, CACA18,58324.5%+7.0 pts
31Monterey County, CACA433,72926.2%+3.7 pts
32Inyo County, CACA18,15826.4%+9.2 pts
33Mariposa County, CACA16,91826.9%+6.7 pts
34Solano County, CACA455,37627.1%+5.7 pts
35Butte County, CACA209,21128.3%+6.5 pts
36Humboldt County, CACA131,64730.9%+7.9 pts
37Sacramento County, CACA1,618,46031.4%+6.6 pts
38Mono County, CACA12,50532.1%+3.1 pts
39Los Angeles County, CACA9,694,93433.5%+8.7 pts
40Ventura County, CACA830,85133.9%+6.9 pts
41Santa Barbara County, CACA442,06535.0%+5.5 pts
42El Dorado County, CACA192,32335.2%+8.7 pts
43San Luis Obispo County, CACA282,36736.1%+9.4 pts
44Sonoma County, CACA486,44436.4%+7.9 pts
45Napa County, CACA132,94937.2%+10.8 pts
46Nevada County, CACA101,91137.6%+11.5 pts
47Alpine County, CACA1,04338.4%+10.2 pts
48San Diego County, CACA3,282,24839.5%+9.9 pts
49Placer County, CACA442,08140.8%+10.5 pts
50Orange County, CACA3,149,50741.2%+10.4 pts
51Santa Cruz County, CACA258,85241.8%+7.6 pts
52Yolo County, CACA224,41042.6%+8.5 pts
53Contra Costa County, CACA1,170,07043.3%+8.3 pts
54Alameda County, CACA1,636,63048.7%+13.8 pts
55San Mateo County, CACA743,56852.1%+13.1 pts
56Santa Clara County, CACA1,914,39153.5%+13.0 pts
57San Francisco County, CACA826,07958.8%+13.8 pts
58Marin County, CACA253,69460.2%+8.9 pts
SHOWING 1–58 OF 58

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS