San Marino Unified School District had 259 12th-grade students during the 2019-2020 school year, according to the California Department of Education. Los Angeles Unified School District had the highest number of 12th-grade students enrolled in California with 40,386.
According to the National Center for Education Services, California is expected to see public and secondary school enrollment decrease three percent from 2017-2029. The state expected to see the largest drop in enrollment is New Mexico with a projected 12 percent decrease, while Washington D.C. is expected to see a 14 percent increase over the same time period.
In a survey conducted by the Public Policy Institute of California, seven percent of respondents said large class size was the biggest issue facing California’s K-12 schools.
| Rank | District | Attendance |
|---|---|---|
| 1 | Los Angeles Unified School District | 40,386 |
| 2 | Kern High School District | 10,243 |
| 3 | San Diego Unified School District | 8,973 |
| 4 | Sweetwater Union High School District | 7,430 |
| 5 | East Side Union High School District | 6,465 |
| 6 | Chaffey Joint Union High School District | 5,930 |
| 7 | Long Beach Unified School District | 5,649 |
| 8 | Antelope Valley Union High School District | 5,566 |
| 9 | Grossmont Union High School District | 5,370 |
| 10 | Anaheim Union High School District | 5,255 |
| 11 | Elk Grove Unified School District | 5,227 |
| 12 | Capistrano Unified School District | 4,787 |
| 13 | Fresno Unified School District | 4,697 |
| 14 | San Juan Unified School District | 4,572 |
| 15 | San Francisco Unified School District | 4,428 |
