| Pomona Catholic High School | 0.0 |
Regular elementary or secondary | 9-12 | 221 | 11.9 | Roman Catholic |
| Damien High School | 3.5 |
Regular elementary or secondary | 9-12 | 1196 | 19.0 | Roman Catholic |
| Faith Lutheran High School | 3.6 |
Special program emphasis | 9-12 | 187 | 11.3 | Lutheran Church - Missouri Synod |
| The Webb Schools | 4.3 |
Regular elementary or secondary | 9-12 | 385 | 7.6 | Nonsectarian |
| Ontario Christian High School | 5.6 |
Regular elementary or secondary | 9-12 | 536 | 15.6 | Calvinist |
| Western Christian High School | 6.5 |
Regular elementary or secondary | 9-12 | 468 | 14.6 | Christian (no specific denomination) |
| St Lucys Priory High School | 8.9 |
Regular elementary or secondary | 9-12 | 862 | 18.5 | Roman Catholic |
| Mary Star Of The Sea High School | 9.3 |
Regular elementary or secondary | 9-12 | 504 | 15.9 | Roman Catholic |
| Oxford School | 9.4 |
Regular elementary or secondary | 7-12 | 60 | 8.6 | Nonsectarian |
| Bishop Amat High School | 11.9 |
Regular elementary or secondary | 9-12 | 1489 | 20.0 | Roman Catholic |
| Rosary High School | 14.8 |
Regular elementary or secondary | 9-12 | 691 | 16.3 | Roman Catholic |
| Whittier Christian High School | 14.9 |
Regular elementary or secondary | 9-12 | 717 | 15.4 | Christian (no specific denomination) |
| Vista Del Rio Jr/sr High School | 15.1 |
Special education | 7-12 | 17 | 5.7 | Nonsectarian |
| Creative Teaching | 15.6 |
Alternative/other | 7-11 | 21 | 21.0 | Christian (no specific denomination) |
| Arroyo Pacific Academy | 16.7 |
Regular elementary or secondary | 9-12 | 100 | 8.5 | Nonsectarian |
| Lutheran High School - Orange County | 16.9 |
Regular elementary or secondary | 9-12 | 1322 | 15.5 | Lutheran Church - Missouri Synod |
| First Presbyterian School | 17.0 |
Regular elementary or secondary | 9-12 | 69 | 12.6 | Christian (no specific denomination) |
| Whittier Christian Junior High | 17.2 |
Regular elementary or secondary | 7-8 | 147 | 16.1 | Baptist |
| Heights Christian Junior High | 17.7 |
Regular elementary or secondary | 7-8 | 263 | 19.6 | Christian (no specific denomination) |
| St Paul High School | 18.6 |
Regular elementary or secondary | 9-12 | 676 | 13.8 | Roman Catholic |
| Servite High School | 18.6 |
Regular elementary or secondary | 9-12 | 881 | 13.4 | Roman Catholic |
| Berean Christian School | 18.7 |
Regular elementary or secondary | 7-12 | 9 | 5.6 | Baptist |
| Don Bosco Technical Institute | 18.8 |
Regular elementary or secondary | 9-12 | 815 | 12.8 | Roman Catholic |
| Fairmont Preparatory Academy | 19.1 |
Regular elementary or secondary | 7-12 | 692 | 12.5 | Nonsectarian |
| La Salle High School | 19.1 |
Regular elementary or secondary | 9-12 | 732 | 16.1 | Roman Catholic |
| Alverno High School | 19.2 |
Regular elementary or secondary | 9-12 | 281 | 14.6 | Roman Catholic |
| Rosemary School | 19.7 |
Special education | 8-12 | 41 | 20.5 | Nonsectarian |
| Cornelia Connelly School | 20.0 |
Regular elementary or secondary | 9-12 | 311 | 11.7 | Roman Catholic |
| San Gabriel Mission High School | 20.2 |
Regular elementary or secondary | 9-12 | 267 | 12.7 | Roman Catholic |
| Cantwell Sacred Heart Of Mary | 21.6 |
Regular elementary or secondary | 9-12 | 631 | 19.5 | Roman Catholic |
| Wisdom Mission | 21.7 |
Regular elementary or secondary | 9-12 | 8 | 1.4 | Presbyterian |
| Ramona Convent Secondary School | 22.0 |
Regular elementary or secondary | 7-12 | 463 | 9.8 | Roman Catholic |
| Excelsior School | 22.0 |
Regular elementary or secondary | 9-12 | 41 | 8.4 | Nonsectarian |
| Notre Dame High School | 22.3 |
Regular elementary or secondary | 9-12 | 588 | 17.7 | Roman Catholic |
| Westbrook Academy | 22.8 |
Alternative/other | 10-10 | 2 | 2.0 | Nonsectarian |
| Lindsay | 23.1 |
Regular elementary or secondary | 9-12 | 31 | 6.2 | Nonsectarian |
| Maranatha High School | 23.5 |
Regular elementary or secondary | 9-12 | 692 | 13.5 | Christian (no specific denomination) |
| Alton School | 23.5 |
Special education | 7-12 | 49 | 9.1 | Nonsectarian |
| Mayfield Senior School | 23.6 |
Regular elementary or secondary | 9-12 | 313 | 10.1 | Roman Catholic |
| St John Bosco High School | 23.7 |
Regular elementary or secondary | 9-12 | 1041 | 20.6 | Roman Catholic |
| Valley Christian High School | 23.8 |
Regular elementary or secondary | 9-12 | 631 | 15.3 | Calvinist |
| Valley Christian Middle School | 24.0 |
Regular elementary or secondary | 7-8 | 270 | 16.4 | Calvinist |
| Mater Dei High School | 24.3 |
Regular elementary or secondary | 9-12 | 2311 | 14.3 | Roman Catholic |
| Turner Christian High School | 24.4 |
Regular elementary or secondary | 7-11 | 30 | 6.8 | Other |
| St Joseph High School | 24.9 |
Regular elementary or secondary | 9-12 | 868 | 13.8 | Roman Catholic |
