| First Presbyterian School | 2.6 |
Regular elementary or secondary | 9-12 | 69 | 12.6 | Christian (no specific denomination) |
| Berean Christian School | 3.5 |
Regular elementary or secondary | 7-12 | 9 | 5.6 | Baptist |
| Bishop Amat High School | 3.6 |
Regular elementary or secondary | 9-12 | 1489 | 20.0 | Roman Catholic |
| Don Bosco Technical Institute | 4.4 |
Regular elementary or secondary | 9-12 | 815 | 12.8 | Roman Catholic |
| Arroyo Pacific Academy | 4.5 |
Regular elementary or secondary | 9-12 | 100 | 8.5 | Nonsectarian |
| San Gabriel Mission High School | 5.2 |
Regular elementary or secondary | 9-12 | 267 | 12.7 | Roman Catholic |
| Rosemary School | 6.0 |
Special education | 8-12 | 41 | 20.5 | Nonsectarian |
| La Salle High School | 6.4 |
Regular elementary or secondary | 9-12 | 732 | 16.1 | Roman Catholic |
| Alverno High School | 6.6 |
Regular elementary or secondary | 9-12 | 281 | 14.6 | Roman Catholic |
| Whittier Christian Junior High | 6.7 |
Regular elementary or secondary | 7-8 | 147 | 16.1 | Baptist |
| Ramona Convent Secondary School | 7.0 |
Regular elementary or secondary | 7-12 | 463 | 9.8 | Roman Catholic |
| Cantwell Sacred Heart Of Mary | 7.5 |
Regular elementary or secondary | 9-12 | 631 | 19.5 | Roman Catholic |
| Westbrook Academy | 7.9 |
Alternative/other | 10-10 | 2 | 2.0 | Nonsectarian |
| Excelsior School | 8.6 |
Regular elementary or secondary | 9-12 | 41 | 8.4 | Nonsectarian |
| Western Christian High School | 8.8 |
Regular elementary or secondary | 9-12 | 468 | 14.6 | Christian (no specific denomination) |
| Mayfield Senior School | 8.8 |
Regular elementary or secondary | 9-12 | 313 | 10.1 | Roman Catholic |
| St Paul High School | 8.9 |
Regular elementary or secondary | 9-12 | 676 | 13.8 | Roman Catholic |
| Maranatha High School | 9.0 |
Regular elementary or secondary | 9-12 | 692 | 13.5 | Christian (no specific denomination) |
| Oxford School | 9.5 |
Regular elementary or secondary | 7-12 | 60 | 8.6 | Nonsectarian |
| St Lucys Priory High School | 9.6 |
Regular elementary or secondary | 9-12 | 862 | 18.5 | Roman Catholic |
| Lindsay | 9.9 |
Regular elementary or secondary | 9-12 | 31 | 6.2 | Nonsectarian |
| Optimist High | 10.2 |
Special education | 7-12 | 147 | 6.6 | Nonsectarian |
| Whittier Christian High School | 10.3 |
Regular elementary or secondary | 9-12 | 717 | 15.4 | Christian (no specific denomination) |
| Sacred Heart High School | 11.0 |
Regular elementary or secondary | 9-12 | 370 | 13.7 | Roman Catholic |
| Heights Christian Junior High | 11.4 |
Regular elementary or secondary | 7-8 | 263 | 19.6 | Christian (no specific denomination) |
| Bishop Mora Salesian High School | 11.6 |
Regular elementary or secondary | 9-12 | 380 | 21.0 | Roman Catholic |
| Flintridge Sacred Heart Academy | 11.7 |
Regular elementary or secondary | 9-12 | 409 | 12.4 | Roman Catholic |
| Hillside School & Learning Center | 11.9 |
Special education | 7-12 | 45 | 7.8 | Nonsectarian |
| Cathedral High School | 12.2 |
Regular elementary or secondary | 9-12 | 685 | 16.1 | Roman Catholic |
| St Francis High School | 12.3 |
Regular elementary or secondary | 9-12 | 696 | 15.4 | Roman Catholic |
| Flintridge Preparatory School | 12.5 |
Regular elementary or secondary | 7-12 | 500 | 11.0 | Nonsectarian |
| St John Bosco High School | 13.2 |
Regular elementary or secondary | 9-12 | 1041 | 20.6 | Roman Catholic |
| Damien High School | 13.4 |
Regular elementary or secondary | 9-12 | 1196 | 19.0 | Roman Catholic |
| St Matthias High School | 13.6 |
Regular elementary or secondary | 9-12 | 332 | 13.3 | Roman Catholic |
| Holy Family High School College Preparatory | 13.9 |
Special program emphasis | 9-12 | 280 | 11.2 | Roman Catholic |
| Dc Academy | 14.2 |
Regular elementary or secondary | 7-12 | 54 | 6.8 | Christian (no specific denomination) |
| Valley Christian High School | 14.9 |
Regular elementary or secondary | 9-12 | 631 | 15.3 | Calvinist |
| Faith Lutheran High School | 15.1 |
Special program emphasis | 9-12 | 187 | 11.3 | Lutheran Church - Missouri Synod |
| Pomona Catholic High School | 15.1 |
Regular elementary or secondary | 9-12 | 221 | 11.9 | Roman Catholic |
| Rosary High School | 15.1 |
Regular elementary or secondary | 9-12 | 691 | 16.3 | Roman Catholic |
| Wisdom Mission | 15.2 |
Regular elementary or secondary | 9-12 | 8 | 1.4 | Presbyterian |
| Valley Christian Middle School | 15.3 |
Regular elementary or secondary | 7-8 | 270 | 16.4 | Calvinist |
| Green Pastures Academy | 15.4 |
Alternative/other | 10-12 | 28 | 5.2 | Methodist |
| Joel John Scholastic Academy | 15.5 |
Regular elementary or secondary | 8-12 | 55 | 6.1 | Christian (no specific denomination) |
| St Joseph High School | 16.0 |
Regular elementary or secondary | 9-12 | 868 | 13.8 | Roman Catholic |
| Loyola High School | 16.0 |
Regular elementary or secondary | 9-12 | 1222 | 19.8 | Roman Catholic |
| Bishop Conaty-our Lady Of Loretto High School | 16.3 |
Regular elementary or secondary | 9-12 | 356 | 18.2 | Roman Catholic |
| The Webb Schools | 16.5 |
Regular elementary or secondary | 9-12 | 385 | 7.6 | Nonsectarian |
| Servite High School | 16.5 |
Regular elementary or secondary | 9-12 | 881 | 13.4 | Roman Catholic |
| Fairmont Preparatory Academy | 16.7 |
Regular elementary or secondary | 7-12 | 692 | 12.5 | Nonsectarian |
| Verbum Dei High School | 16.7 |
Regular elementary or secondary | 9-12 | 351 | 15.2 | Roman Catholic |
| Freeman Enrichment Center | 17.1 |
Special education | 9-12 | 12 | 4.0 | Nonsectarian |
| Cornelia Connelly School | 17.5 |
Regular elementary or secondary | 9-12 | 311 | 11.7 | Roman Catholic |
| Marlborough School | 17.6 |
Regular elementary or secondary | 7-12 | 537 | 8.4 | Nonsectarian |
| Turner Christian High School | 17.8 |
Regular elementary or secondary | 7-11 | 30 | 6.8 | Other |
| New West Technical Academy | 17.9 |
Special education | 8-12 | 59 | 11.8 | Nonsectarian |
| Alton School | 18.2 |
Special education | 7-12 | 49 | 9.1 | Nonsectarian |
| Providence High School | 18.3 |
Regular elementary or secondary | 9-12 | 556 | 11.8 | Roman Catholic |
| Bnos Esther | 18.5 |
Regular elementary or secondary | 10-12 | 29 | 2.3 | Jewish |
| Daniel Murphy Catholic High School | 18.6 |
Regular elementary or secondary | 9-12 | 221 | 14.7 | Roman Catholic |
| Aviva High School | 18.7 |
Special education | 7-12 | 76 | 10.9 | Nonsectarian |
| Yeshiva Ohr Elchonon Chabad, West Coast | 18.7 |
Regular elementary or secondary | 9-12 | 37 | 8.4 | Jewish |
| California Technical University High School | 18.8 |
Regular elementary or secondary | 9-12 | 236 | 23.8 | Baptist |
| Bais Yaakov School For Girls | 18.9 |
Regular elementary or secondary | 9-12 | 275 | 20.5 | Jewish |
| Tijay Renee Academy | 19.4 |
Special education | 7-12 | 8 | 4.2 | Nonsectarian |
| Ofman Learning Center | 19.5 |
Special education | 9-12 | 25 | 4.5 | Nonsectarian |
| Shalhevet High School | 19.6 |
Special program emphasis | 9-12 | 188 | 6.0 | Jewish |
| St Mary's Academy | 20.1 |
Regular elementary or secondary | 9-12 | 375 | 14.4 | Roman Catholic |
| Ontario Christian High School | 20.6 |
Regular elementary or secondary | 9-12 | 536 | 15.6 | Calvinist |
| Lutheran High School - Orange County | 20.7 |
Regular elementary or secondary | 9-12 | 1322 | 15.5 | Lutheran Church - Missouri Synod |
| South Bay Lutheran High School & Prep Academy | 20.7 |
Regular elementary or secondary | 7-12 | 83 | 12.8 | Lutheran Church - Missouri Synod |
| Ateret Israel High School | 20.9 |
Regular elementary or secondary | 9-12 | 21 | 5.4 | Jewish |
| Yula Girls School | 20.9 |
Regular elementary or secondary | 9-12 | 175 | 3.4 | Jewish |
| Junipero Serra High School | 21.1 |
Regular elementary or secondary | 9-12 | 582 | 16.7 | Roman Catholic |
| Bais Chana Chabad | 21.1 |
Regular elementary or secondary | 9-12 | 88 | 3.0 | Jewish |
| Yeshiva University Of High School Of La | 21.8 |
Regular elementary or secondary | 9-12 | 183 | 4.0 | Jewish |
| Princeton College Preparatory | 22.0 |
Regular elementary or secondary | 7-12 | 21 | 10.5 | Nonsectarian |
| Valley Torah High School | 22.1 |
Regular elementary or secondary | 9-12 | 83 | 4.8 | Jewish |
| Mary Star Of The Sea High School | 22.4 |
Regular elementary or secondary | 9-12 | 504 | 15.9 | Roman Catholic |
| Venture School | 22.4 |
Regular elementary or secondary | 9-12 | 28 | 12.2 | Nonsectarian |
| Living Word Christian Academy | 22.5 |
Regular elementary or secondary | 9-11 | 5 | 5.0 | Christian (no specific denomination) |
| Regency High School | 22.7 |
Special education | 7-12 | 56 | 11.2 | Nonsectarian |
| Harvard-westlake School | 22.8 |
Regular elementary or secondary | 7-12 | 1484 | 5.1 | Nonsectarian |
| Valley Torah High | 22.9 |
Regular elementary or secondary | 9-12 | 304 | 6.6 | Jewish |
| St Anthony High School | 22.9 |
Regular elementary or secondary | 9-12 | 265 | 19.6 | Roman Catholic |
| Notre Dame Academy Girls H S | 23.0 |
Regular elementary or secondary | 9-12 | 455 | 16.0 | Roman Catholic |
| Vistamar School | 23.8 |
Alternative/other | 9-12 | 136 | 4.4 | Nonsectarian |
| Notre Dame High School | 24.1 |
Regular elementary or secondary | 9-12 | 1202 | 16.4 | Roman Catholic |
| Marymount High School Los Angeles | 24.3 |
Regular elementary or secondary | 9-12 | 412 | 8.3 | Roman Catholic |
| Poseidon School | 24.7 |
Special education | 9-12 | 21 | 8.8 | Nonsectarian |
| Pacific Lutheran High School | 24.7 |
Regular elementary or secondary | 9-12 | 89 | 11.1 | Lutheran Church - Missouri Synod |
