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RANKING · 2010 CENSUS · 58 SHOWN OF 58

Least educated, California counties · 2010

California counties with the smallest share of adults 25+ holding a bachelor's degree or higher (2010 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
01Colusa County, CACA21,83611.7%+1.1 pts
02Kings County, CACA154,32711.8%+1.4 pts
03Imperial County, CACA181,41112.2%+1.8 pts
04Lassen County, CACA28,11712.4%+1.7 pts
05Yuba County, CACA88,69112.5%+2.1 pts
06Merced County, CACA297,26012.5%+1.4 pts
07Tehama County, CACA64,66512.6%+1.3 pts
08Tulare County, CACA485,14613.0%+1.5 pts
09Madera County, CACA167,92713.5%+1.5 pts
10Del Norte County, CACA26,41014.3%+3.3 pts
11Kern County, CACA927,06814.7%+1.2 pts
12Modoc County, CACA8,42615.6%+3.3 pts
13Glenn County, CACA28,14116.2%+5.5 pts
14Stanislaus County, CACA557,71916.3%+2.2 pts
15Lake County, CACA67,77216.4%+4.4 pts
16Tuolumne County, CACA53,16017.3%+1.2 pts
17San Joaquin County, CACA823,81517.5%+3.0 pts
18San Benito County, CACA70,08218.3%+1.1 pts
19San Bernardino County, CACA2,224,09118.4%+2.4 pts
20Sutter County, CACA98,78718.7%+3.4 pts
21Amador County, CACA41,87619.0%+2.3 pts
22Trinity County, CACA15,72019.5%+3.9 pts
23Calaveras County, CACA46,60519.6%+2.5 pts
24Fresno County, CACA1,035,45619.7%+2.1 pts
25Plumas County, CACA18,58319.8%+2.3 pts
26Shasta County, CACA181,64820.0%+3.4 pts
27Mariposa County, CACA16,91820.4%+0.2 pts
28Riverside County, CACA2,544,91620.5%+3.9 pts
29Inyo County, CACA18,15820.9%+3.8 pts
30Siskiyou County, CACA42,01322.6%+4.8 pts
31Mendocino County, CACA88,12222.7%+2.4 pts
32Sierra County, CACA3,09823.0%+5.8 pts
33Monterey County, CACA433,72923.4%+0.9 pts
34Solano County, CACA455,37624.0%+2.6 pts
35Butte County, CACA209,21124.1%+2.3 pts
36Humboldt County, CACA131,64726.3%+3.3 pts
37Sacramento County, CACA1,618,46027.8%+3.0 pts
38Los Angeles County, CACA9,694,93429.0%+4.1 pts
39Alpine County, CACA1,04329.7%+1.5 pts
40Mono County, CACA12,50529.9%+1.0 pts
41Napa County, CACA132,94930.0%+3.6 pts
42San Luis Obispo County, CACA282,36730.6%+3.9 pts
43Ventura County, CACA830,85130.8%+3.9 pts
44Santa Barbara County, CACA442,06531.0%+1.6 pts
45El Dorado County, CACA192,32331.1%+4.5 pts
46Sonoma County, CACA486,44431.5%+2.9 pts
47Nevada County, CACA101,91131.9%+5.8 pts
48San Diego County, CACA3,282,24834.1%+4.5 pts
49Placer County, CACA442,08134.1%+3.8 pts
50Orange County, CACA3,149,50736.0%+5.1 pts
51Santa Cruz County, CACA258,85237.3%+3.1 pts
52Yolo County, CACA224,41037.8%+3.6 pts
53Contra Costa County, CACA1,170,07038.2%+3.2 pts
54Alameda County, CACA1,636,63040.3%+5.4 pts
55San Mateo County, CACA743,56844.0%+5.0 pts
56Santa Clara County, CACA1,914,39145.3%+4.8 pts
57San Francisco County, CACA826,07951.2%+6.2 pts
58Marin County, CACA253,69454.1%+2.8 pts
SHOWING 1–58 OF 58

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