Ranking of California Counties By Population Aged 25 years and above with an Educational attainment of Some College or Associates Degree 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 Some College or Associates Degree was 7,632,443. Among all California counties, Los Angeles County had the highest population (aged 25 years and above) with an educational attainment of Some College or Associates Degree (1,772,567), followed by San Diego County (672,143), and Orange County (598,758).
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 Some College or Associates Degree in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Los Angeles County | 1772567 |
| 2 | San Diego County | 672143 |
| 3 | Orange County | 598758 |
| 4 | Riverside County | 511637 |
| 5 | San Bernardino County | 445345 |
| 6 | Sacramento County | 363694 |
| 7 | Santa Clara County | 284658 |
| 8 | Alameda County | 271096 |
| 9 | Contra Costa County | 227162 |
| 10 | Fresno County | 201826 |
| 11 | Ventura County | 182934 |
| 12 | Kern County | 169915 |
| 13 | San Joaquin County | 156626 |
| 14 | San Mateo County | 129495 |
| 15 | San Francisco County | 123258 |
| 16 | Sonoma County | 120203 |
| 17 | Solano County | 116367 |
| 18 | Stanislaus County | 111856 |
| 19 | Placer County | 100475 |
| 20 | Tulare County | 86136 |
| 21 | Santa Barbara County | 82013 |
| 22 | Monterey County | 73530 |
| 23 | San Luis Obispo County | 67834 |
| 24 | Santa Cruz County | 54858 |
| 24 | Shasta County | 54858 |
| 25 | Butte County | 54420 |
| 26 | El Dorado County | 51667 |
| 27 | Merced County | 49268 |
| 28 | Marin County | 44532 |
| 29 | Humboldt County | 34447 |
| 30 | Yolo County | 34203 |
| 31 | Imperial County | 32727 |
| 32 | Madera County | 31711 |
| 33 | Kings County | 31283 |
| 34 | Napa County | 29842 |
| 35 | Nevada County | 29399 |
| 36 | Mendocino County | 23338 |
| 37 | Sutter County | 22792 |
| 38 | Yuba County | 20436 |
| 39 | Lake County | 19142 |
| 40 | Tuolumne County | 17887 |
| 41 | Tehama County | 17864 |
| 42 | San Benito County | 14805 |
| 43 | Calaveras County | 13963 |
| 44 | Siskiyou County | 13316 |
| 45 | Amador County | 13052 |
| 46 | Lassen County | 8716 |
| 47 | Plumas County | 6655 |
| 48 | Del Norte County | 6601 |
| 49 | Glenn County | 5728 |
| 50 | Mariposa County | 5351 |
| 51 | Inyo County | 4721 |
| 52 | Trinity County | 4605 |
| 53 | Colusa County | 3934 |
| 54 | Mono County | 3355 |
| 55 | Modoc County | 2180 |
| 56 | Sierra County | 981 |
| 57 | Alpine County | 278 |