| Castaic Middle School: Demographics | |
| Community: | Suburban |
| County: | Los Angeles |
| District: | Castaic Union S.D. |
| Enrollment: | 1819 |
| Grade Levels: | 4-8 |
| API for 2002: | 746 |
| Demographics: | 68% White |
| 22% Hispanic/Latino | |
| 5% Filipino/Pacific Islander | |
| 3% Black/African American | |
| 2% Asian | |
| English Learners: | 5% |
| Reduced/Free Lunch: | 14% |