Demographics Table
Demographic Data Report for California by County
Education: Less than High School
Population Ages 25+
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People(Education: Less Than High School)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| United States | N/A | 10.4 | 23,992,410 | N/A |
| California | N/A | 15.3 | 4,136,964 | 51 of 52 |
| Alpine County | Rural | 3.7 | 41 | 82 |
| El Dorado County | Urban | 4.8 | 6,893 | 211 |
| Placer County | Urban | 4.9 | 14,686 | 235 |
| Nevada County | Rural | 5.2 | 4,133 | 297 |
| Plumas County | Rural | 6.3 | 963 | 572 |
| Tuolumne County | Rural | 6.7 | 2,783 | 681 |
| Inyo County | Rural | 7.0 | 961 | 766 |
| Marin County | Urban | 7.2 | 13,749 | 822 |
| Sierra County | Rural | 7.5 | 157 | 915 |
| Calaveras County | Rural | 7.6 | 2,719 | 951 |
| San Luis Obispo County | Urban | 7.8 | 14,855 | 1,011 |
| Trinity County | Rural | 7.8 | 976 | 1,011 |
| Shasta County | Urban | 7.9 | 10,184 | 1,041 |
| Humboldt County | Rural | 8.1 | 7,498 | 1,093 |
| Siskiyou County | Rural | 8.3 | 2,672 | 1,147 |
| Amador County | Rural | 9.3 | 3,068 | 1,440 |
| Butte County | Urban | 9.4 | 12,730 | 1,469 |
| Mariposa County | Rural | 9.7 | 1,301 | 1,546 |
| San Mateo County | Urban | 9.8 | 52,942 | 1,573 |
| Contra Costa County | Urban | 10.4 | 84,906 | 1,712 |
| Santa Clara County | Urban | 10.7 | 144,780 | 1,780 |
| San Diego County | Urban | 10.9 | 248,294 | 1,824 |
| San Francisco County | Urban | 11.0 | 72,937 | 1,838 |
| Alameda County | Urban | 11.2 | 133,545 | 1,876 |
| Mono County | Rural | 11.2 | 1,148 | 1,876 |
| Sonoma County | Urban | 11.3 | 39,954 | 1,890 |
| Santa Cruz County | Urban | 11.4 | 20,421 | 1,913 |
| Solano County | Urban | 11.4 | 36,039 | 1,913 |
| Yolo County | Urban | 11.4 | 14,946 | 1,913 |
| Sacramento County | Urban | 11.7 | 128,480 | 1,982 |
| Lake County | Rural | 12.4 | 6,062 | 2,100 |
| Mendocino County | Rural | 12.7 | 8,251 | 2,153 |
| Tehama County | Rural | 12.8 | 5,729 | 2,175 |
| Orange County | Urban | 12.9 | 287,073 | 2,192 |
| Modoc County | Rural | 13.3 | 856 | 2,264 |
| Del Norte County | Rural | 14.1 | 2,799 | 2,392 |
| Yuba County | Urban | 14.3 | 7,704 | 2,427 |
| Napa County | Urban | 14.9 | 14,559 | 2,514 |
| Ventura County | Urban | 14.9 | 86,256 | 2,514 |
| Riverside County | Urban | 16.5 | 272,299 | 2,703 |
| San Benito County | Urban | 16.6 | 7,344 | 2,716 |
| San Bernardino County | Urban | 17.5 | 248,907 | 2,805 |
| Santa Barbara County | Urban | 18.1 | 50,402 | 2,847 |
| Los Angeles County | Urban | 19.1 | 1,323,665 | 2,912 |
| San Joaquin County | Urban | 19.1 | 98,300 | 2,912 |
| Sutter County | Urban | 19.8 | 12,921 | 2,953 |
| Stanislaus County | Urban | 20.1 | 71,359 | 2,965 |
| Fresno County | Urban | 20.9 | 132,968 | 2,990 |
| Glenn County | Rural | 21.8 | 4,009 | 3,010 |
| Kern County | Urban | 23.0 | 129,659 | 3,045 |
| Lassen County | Rural | 23.0 | 5,133 | 3,045 |
| Kings County | Urban | 24.2 | 23,269 | 3,069 |
| Tulare County | Urban | 25.2 | 72,559 | 3,083 |
| Colusa County | Rural | 25.8 | 3,638 | 3,093 |
| Monterey County | Urban | 26.7 | 75,231 | 3,101 |
| Madera County | Urban | 26.9 | 27,252 | 3,103 |
| Merced County | Urban | 27.7 | 48,262 | 3,110 |
| Imperial County | Urban | 28.5 | 31,737 | 3,116 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/19/2026 6:07 pm.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Education: Less than High School, see the dictionary.
Data for United States does not include Puerto Rico.