| Notre Dame High School | 0.0 |
Regular elementary or secondary | 9-12 | 588 | 17.7 | Roman Catholic |
| Creative Teaching | 9.3 |
Alternative/other | 7-11 | 21 | 21.0 | Christian (no specific denomination) |
| Arrowhead Christian Academy | 13.5 |
Regular elementary or secondary | 7-12 | 545 | 16.5 | Christian (no specific denomination) |
| Aquinas High School | 16.2 |
Regular elementary or secondary | 9-12 | 370 | 11.1 | Roman Catholic |
| Ontario Christian High School | 16.7 |
Regular elementary or secondary | 9-12 | 536 | 15.6 | Calvinist |
| Mary Star Of The Sea High School | 20.3 |
Regular elementary or secondary | 9-12 | 504 | 15.9 | Roman Catholic |
| Hope Learning Academy | 20.4 |
Alternative/other | 8-12 | 11 | 6.1 | Christian (no specific denomination) |
| Pomona Catholic High School | 22.3 |
Regular elementary or secondary | 9-12 | 221 | 11.9 | Roman Catholic |
| St Michael's Prep School | 22.3 |
Regular elementary or secondary | 9-12 | 60 | 4.8 | Roman Catholic |
| Wilson Creek Jr/sr High School | 22.6 |
Regular elementary or secondary | 8-12 | 66 | 12.2 | Nonsectarian |
| The Webb Schools | 23.2 |
Regular elementary or secondary | 9-12 | 385 | 7.6 | Nonsectarian |
| Santa Margarita Catholic High School | 23.4 |
Regular elementary or secondary | 9-12 | 1698 | 17.7 | Roman Catholic |
| Faith Lutheran High School | 24.1 |
Special program emphasis | 9-12 | 187 | 11.3 | Lutheran Church - Missouri Synod |
| California Lutheran High School | 24.4 |
Regular elementary or secondary | 9-12 | 104 | 10.4 | Wisconsin Evangelical Lutheran Synod |
