| Brethren Christian Jr/sr High | 1.6 |
Regular elementary or secondary | 7-12 | 380 | 12.9 | Brethren |
| California Science Academy | 2.6 |
Regular elementary or secondary | 7-12 | 34 | 4.0 | Islamic |
| Mater Dei High School | 5.5 |
Regular elementary or secondary | 9-12 | 2311 | 14.3 | Roman Catholic |
| Sage Hill School | 6.9 |
Regular elementary or secondary | 9-12 | 454 | 10.7 | Nonsectarian |
| Lutheran South High School | 7.7 |
Regular elementary or secondary | 9-10 | 100 | 13.2 | Lutheran Church - Missouri Synod |
| Cornelia Connelly School | 12.0 |
Regular elementary or secondary | 9-12 | 311 | 11.7 | Roman Catholic |
| Alton School | 12.6 |
Special education | 7-12 | 49 | 9.1 | Nonsectarian |
| Fairmont Preparatory Academy | 12.9 |
Regular elementary or secondary | 7-12 | 692 | 12.5 | Nonsectarian |
| Lutheran High School - Orange County | 13.0 |
Regular elementary or secondary | 9-12 | 1322 | 15.5 | Lutheran Church - Missouri Synod |
| Servite High School | 13.2 |
Regular elementary or secondary | 9-12 | 881 | 13.4 | Roman Catholic |
| Turner Christian High School | 14.2 |
Regular elementary or secondary | 7-11 | 30 | 6.8 | Other |
| Silverleaf Academy Of Arts And Sciences | 14.5 |
Regular elementary or secondary | 8-12 | 41 | 4.6 | Nonsectarian |
| Ocean View School | 15.4 |
Special education | 8-12 | 20 | 5.7 | Nonsectarian |
| Wisdom Mission | 15.4 |
Regular elementary or secondary | 9-12 | 8 | 1.4 | Presbyterian |
| Rosary High School | 15.8 |
Regular elementary or secondary | 9-12 | 691 | 16.3 | Roman Catholic |
| Futures Halstrom High School | 16.3 |
Regular elementary or secondary | 8-12 | 200 | 12.5 | Nonsectarian |
| St Anthony High School | 16.6 |
Regular elementary or secondary | 9-12 | 265 | 19.6 | Roman Catholic |
| Valley Christian Middle School | 17.6 |
Regular elementary or secondary | 7-8 | 270 | 16.4 | Calvinist |
| Regency High School | 17.7 |
Special education | 7-12 | 56 | 11.2 | Nonsectarian |
| St Joseph High School | 17.8 |
Regular elementary or secondary | 9-12 | 868 | 13.8 | Roman Catholic |
| J Serra Catholic High School | 17.8 |
Regular elementary or secondary | 9-12 | 915 | 14.8 | Roman Catholic |
| St Michael's Prep School | 17.8 |
Regular elementary or secondary | 9-12 | 60 | 4.8 | Roman Catholic |
| Valley Christian High School | 17.9 |
Regular elementary or secondary | 9-12 | 631 | 15.3 | Calvinist |
| Heights Christian Junior High | 18.3 |
Regular elementary or secondary | 7-8 | 263 | 19.6 | Christian (no specific denomination) |
| Whittier Christian High School | 19.3 |
Regular elementary or secondary | 9-12 | 717 | 15.4 | Christian (no specific denomination) |
| Santa Margarita Catholic High School | 20.0 |
Regular elementary or secondary | 9-12 | 1698 | 17.7 | Roman Catholic |
| St John Bosco High School | 20.6 |
Regular elementary or secondary | 9-12 | 1041 | 20.6 | Roman Catholic |
| St Paul High School | 21.5 |
Regular elementary or secondary | 9-12 | 676 | 13.8 | Roman Catholic |
| Freeman Enrichment Center | 22.3 |
Special education | 9-12 | 12 | 4.0 | Nonsectarian |
| St Matthias High School | 22.4 |
Regular elementary or secondary | 9-12 | 332 | 13.3 | Roman Catholic |
| Oxford School | 22.9 |
Regular elementary or secondary | 7-12 | 60 | 8.6 | Nonsectarian |
| Whittier Christian Junior High | 23.3 |
Regular elementary or secondary | 7-8 | 147 | 16.1 | Baptist |
