| Faith Lutheran High School | 0.0 |
Special program emphasis | 9-12 | 187 | 11.3 | Lutheran Church - Missouri Synod |
| The Webb Schools | 1.4 |
Regular elementary or secondary | 9-12 | 385 | 7.6 | Nonsectarian |
| Damien High School | 1.7 |
Regular elementary or secondary | 9-12 | 1196 | 19.0 | Roman Catholic |
| Pomona Catholic High School | 3.6 |
Regular elementary or secondary | 9-12 | 221 | 11.9 | Roman Catholic |
| Western Christian High School | 6.5 |
Regular elementary or secondary | 9-12 | 468 | 14.6 | Christian (no specific denomination) |
| St Lucys Priory High School | 6.9 |
Regular elementary or secondary | 9-12 | 862 | 18.5 | Roman Catholic |
| Mary Star Of The Sea High School | 7.4 |
Regular elementary or secondary | 9-12 | 504 | 15.9 | Roman Catholic |
| Ontario Christian High School | 7.8 |
Regular elementary or secondary | 9-12 | 536 | 15.6 | Calvinist |
| Oxford School | 11.6 |
Regular elementary or secondary | 7-12 | 60 | 8.6 | Nonsectarian |
| Bishop Amat High School | 12.4 |
Regular elementary or secondary | 9-12 | 1489 | 20.0 | Roman Catholic |
| Vista Del Rio Jr/sr High School | 15.1 |
Special education | 7-12 | 17 | 5.7 | Nonsectarian |
| Arroyo Pacific Academy | 15.6 |
Regular elementary or secondary | 9-12 | 100 | 8.5 | Nonsectarian |
| First Presbyterian School | 16.5 |
Regular elementary or secondary | 9-12 | 69 | 12.6 | Christian (no specific denomination) |
| Whittier Christian High School | 17.2 |
Regular elementary or secondary | 9-12 | 717 | 15.4 | Christian (no specific denomination) |
| Rosary High School | 17.8 |
Regular elementary or secondary | 9-12 | 691 | 16.3 | Roman Catholic |
| Alverno High School | 17.9 |
Regular elementary or secondary | 9-12 | 281 | 14.6 | Roman Catholic |
| La Salle High School | 17.9 |
Regular elementary or secondary | 9-12 | 732 | 16.1 | Roman Catholic |
| Creative Teaching | 18.4 |
Alternative/other | 7-11 | 21 | 21.0 | Christian (no specific denomination) |
| Berean Christian School | 18.4 |
Regular elementary or secondary | 7-12 | 9 | 5.6 | Baptist |
| Whittier Christian Junior High | 18.4 |
Regular elementary or secondary | 7-8 | 147 | 16.1 | Baptist |
| Rosemary School | 18.8 |
Special education | 8-12 | 41 | 20.5 | Nonsectarian |
| Don Bosco Technical Institute | 19.2 |
Regular elementary or secondary | 9-12 | 815 | 12.8 | Roman Catholic |
| Heights Christian Junior High | 19.8 |
Regular elementary or secondary | 7-8 | 263 | 19.6 | Christian (no specific denomination) |
| San Gabriel Mission High School | 19.8 |
Regular elementary or secondary | 9-12 | 267 | 12.7 | Roman Catholic |
| St Paul High School | 20.1 |
Regular elementary or secondary | 9-12 | 676 | 13.8 | Roman Catholic |
| Lutheran High School - Orange County | 20.4 |
Regular elementary or secondary | 9-12 | 1322 | 15.5 | Lutheran Church - Missouri Synod |
| Excelsior School | 20.8 |
Regular elementary or secondary | 9-12 | 41 | 8.4 | Nonsectarian |
| Servite High School | 21.5 |
Regular elementary or secondary | 9-12 | 881 | 13.4 | Roman Catholic |
| Lindsay | 21.8 |
Regular elementary or secondary | 9-12 | 31 | 6.2 | Nonsectarian |
| Fairmont Preparatory Academy | 22.0 |
Regular elementary or secondary | 7-12 | 692 | 12.5 | Nonsectarian |
| Ramona Convent Secondary School | 22.0 |
Regular elementary or secondary | 7-12 | 463 | 9.8 | Roman Catholic |
| Cantwell Sacred Heart Of Mary | 22.2 |
Regular elementary or secondary | 9-12 | 631 | 19.5 | Roman Catholic |
| Westbrook Academy | 22.2 |
Alternative/other | 10-10 | 2 | 2.0 | Nonsectarian |
| Maranatha High School | 22.7 |
Regular elementary or secondary | 9-12 | 692 | 13.5 | Christian (no specific denomination) |
| Mayfield Senior School | 22.9 |
Regular elementary or secondary | 9-12 | 313 | 10.1 | Roman Catholic |
| Cornelia Connelly School | 23.0 |
Regular elementary or secondary | 9-12 | 311 | 11.7 | Roman Catholic |
| Notre Dame High School | 24.1 |
Regular elementary or secondary | 9-12 | 588 | 17.7 | Roman Catholic |
| Wisdom Mission | 24.1 |
Regular elementary or secondary | 9-12 | 8 | 1.4 | Presbyterian |
| Optimist High | 24.4 |
Special education | 7-12 | 147 | 6.6 | Nonsectarian |
| Hillside School & Learning Center | 24.4 |
Special education | 7-12 | 45 | 7.8 | Nonsectarian |
| Flintridge Sacred Heart Academy | 24.6 |
Regular elementary or secondary | 9-12 | 409 | 12.4 | Roman Catholic |
| St Francis High School | 24.7 |
Regular elementary or secondary | 9-12 | 696 | 15.4 | Roman Catholic |
| Flintridge Preparatory School | 24.8 |
Regular elementary or secondary | 7-12 | 500 | 11.0 | Nonsectarian |
