When the 2023 high school graduation class started high school in 2019, the ninth grade had 3,215 students. Four years later, the 12th grade had only 2,606 students – a 20% loss.
| Grade | Students |
| 12 | 2,606 |
| 11 | 2,625 |
| 10 | 2,936 |
| 9 | 3,215 |
Santa Rosa saw a slight increase over the same four years.
| Grade | Students |
| 12 | 2,419 |
| 11 | 2,309 |
| 10 | 2,297 |
| 9 | 2,396 |


