| Green Brook Academy | 4.3 |
Special education | 7-12 | 57 | 5.9 | Nonsectarian |
| High Road School At Somerset | 5.0 |
Special education | 7-12 | 129 | 6.6 | Nonsectarian |
| East Mountain School | 8.6 |
Special education | 7-12 | 118 | 5.1 | Nonsectarian |
| Sage Day School At Somerset | 9.9 |
Special education | 9-12 | 38 | 3.6 | Nonsectarian |
| Purnell School | 10.7 |
Special education | 9-12 | 122 | 4.5 | Nonsectarian |
| Mt St Mary Academy (high School) | 11.8 |
Regular elementary or secondary | 9-12 | 381 | 9.7 | Roman Catholic |
| Bishop George Ahr High School | 12.8 |
Regular elementary or secondary | 9-12 | 913 | 15.7 | Roman Catholic |
| St Joseph High School | 13.2 |
Regular elementary or secondary | 9-12 | 833 | 14.6 | Roman Catholic |
| Daytop Preparatory School | 13.5 |
Regular elementary or secondary | 9-12 | 30 | 2.8 | Nonsectarian |
| Union Catholic Regional High S | 14.1 |
Regular elementary or secondary | 9-12 | 802 | 15.9 | Roman Catholic |
| Villa Walsh Academy | 15.1 |
Regular elementary or secondary | 7-12 | 248 | 9.5 | Roman Catholic |
| Hunterdon Learning Center | 15.4 |
Special education | 7-12 | 80 | 6.7 | Nonsectarian |
| Delbarton School | 15.4 |
Regular elementary or secondary | 7-12 | 542 | 7.0 | Roman Catholic |
| Moshe Aaron Yeshiva High School | 15.6 |
Regular elementary or secondary | 9-12 | 151 | 5.9 | Jewish |
| Academy Of Saint Elizabeth | 16.4 |
Regular elementary or secondary | 9-12 | 244 | 9.5 | Roman Catholic |
| Oratory Preparatory School | 16.4 |
Regular elementary or secondary | 7-12 | 279 | 8.1 | Roman Catholic |
| Mother Seton Regional High School | 16.9 |
Regular elementary or secondary | 9-12 | 419 | 15.6 | Roman Catholic |
| Shepard High School | 17.1 |
Special education | 8-12 | 122 | 6.7 | Nonsectarian |
| Cornerstone Day School | 17.6 |
Special education | 7-12 | 42 | 8.4 | Nonsectarian |
| Cardinal Mccarrick High School | 18.9 |
Regular elementary or secondary | 9-12 | 469 | 15.0 | Roman Catholic |
| Roselle Catholic High School | 19.2 |
Regular elementary or secondary | 9-12 | 678 | 15.6 | Roman Catholic |
| Yeshiva Gedolah Of Perth Amboy | 19.4 |
Special program emphasis | 9-11 | 13 | 3.6 | Jewish |
| The Lawrenceville School | 20.7 |
Regular elementary or secondary | 9-12 | 808 | 6.2 | Nonsectarian |
| St Mary Of The Assumption High School | 21.9 |
Regular elementary or secondary | 9-12 | 265 | 13.4 | Roman Catholic |
| The Peddie School | 22.2 |
Regular elementary or secondary | 9-12 | 510 | 6.0 | Nonsectarian |
| Benedictine Academy | 22.4 |
Regular elementary or secondary | 9-12 | 191 | 12.2 | Roman Catholic |
| The Milton School | 22.7 |
Special education | 8-12 | 36 | 6.0 | Nonsectarian |
| Marylawn Of The Oranges Academy | 22.7 |
Regular elementary or secondary | 9-12 | 197 | 10.2 | Roman Catholic |
| St Patrick High School | 23.2 |
Regular elementary or secondary | 9-12 | 255 | 13.4 | Roman Catholic |
| Morris Catholic High School | 23.4 |
Regular elementary or secondary | 9-12 | 502 | 15.4 | Roman Catholic |
| Notre Dame High School | 23.4 |
Regular elementary or secondary | 9-12 | 1289 | 13.6 | Roman Catholic |
| Seton Hall Preparatory School | 23.8 |
Regular elementary or secondary | 9-12 | 972 | 13.4 | Roman Catholic |
| St John Vianney Regional High School | 24.7 |
Regular elementary or secondary | 9-12 | 1011 | 16.2 | Roman Catholic |
