Ranking of California Counties By Population Aged 25 years and above with an Educational attainment of Bachelors or Higher in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of California (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 9,451,438. Among all California counties, Los Angeles County had the highest population (aged 25 years and above) with an educational attainment of Bachelors or Higher (2,356,572), followed by Orange County (925,364), and San Diego County (906,455).
The chart below shows the top 10 California counties, and the table below shows the ranking of all California counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: California ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of California Counties By Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Los Angeles County | 2356572 |
| 2 | Orange County | 925364 |
| 3 | San Diego County | 906455 |
| 4 | Santa Clara County | 733950 |
| 5 | Alameda County | 592670 |
| 6 | San Francisco County | 410052 |
| 7 | Riverside County | 370132 |
| 8 | Contra Costa County | 354661 |
| 9 | Sacramento County | 341705 |
| 10 | San Bernardino County | 301891 |
| 11 | San Mateo County | 289401 |
| 12 | Ventura County | 195611 |
| 13 | Fresno County | 140183 |
| 14 | Sonoma County | 132345 |
| 15 | Placer County | 117251 |
| 16 | Marin County | 115907 |
| 17 | Santa Barbara County | 97636 |
| 18 | Kern County | 97236 |
| 19 | San Joaquin County | 95083 |
| 20 | Solano County | 86981 |
| 21 | Santa Cruz County | 75398 |
| 22 | Monterey County | 74311 |
| 23 | San Luis Obispo County | 69920 |
| 24 | Stanislaus County | 62589 |
| 25 | Yolo County | 54999 |
| 26 | El Dorado County | 51363 |
| 27 | Tulare County | 42332 |
| 28 | Butte County | 42309 |
| 29 | Napa County | 36464 |
| 30 | Nevada County | 30391 |
| 31 | Humboldt County | 29263 |
| 32 | Shasta County | 29041 |
| 33 | Merced County | 23259 |
| 34 | Imperial County | 16758 |
| 35 | Madera County | 16144 |
| 36 | Mendocino County | 15962 |
| 37 | Kings County | 13498 |
| 38 | Sutter County | 12971 |
| 39 | Tuolumne County | 10396 |
| 40 | Yuba County | 9018 |
| 41 | Lake County | 8557 |
| 42 | San Benito County | 8460 |
| 43 | Tehama County | 7627 |
| 44 | Calaveras County | 6959 |
| 45 | Siskiyou County | 6933 |
| 46 | Amador County | 6192 |
| 47 | Mariposa County | 3901 |
| 48 | Inyo County | 3749 |
| 49 | Plumas County | 3464 |
| 50 | Del Norte County | 3176 |
| 51 | Lassen County | 2863 |
| 52 | Mono County | 2804 |
| 53 | Glenn County | 2725 |
| 54 | Trinity County | 2324 |
| 55 | Colusa County | 2043 |
| 56 | Modoc County | 1293 |
| 57 | Sierra County | 515 |
| 58 | Alpine County | 381 |
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