| Daytop Preparatory School | 0.0 |
Regular elementary or secondary | 9-12 | 30 | 2.8 | Nonsectarian |
| Delbarton School | 4.6 |
Regular elementary or secondary | 7-12 | 542 | 7.0 | Roman Catholic |
| Villa Walsh Academy | 5.4 |
Regular elementary or secondary | 7-12 | 248 | 9.5 | Roman Catholic |
| Purnell School | 6.8 |
Special education | 9-12 | 122 | 4.5 | Nonsectarian |
| Shepard High School | 7.1 |
Special education | 8-12 | 122 | 6.7 | Nonsectarian |
| Academy Of Saint Elizabeth | 8.8 |
Regular elementary or secondary | 9-12 | 244 | 9.5 | Roman Catholic |
| Morris Catholic High School | 11.0 |
Regular elementary or secondary | 9-12 | 502 | 15.4 | Roman Catholic |
| Oratory Preparatory School | 13.2 |
Regular elementary or secondary | 7-12 | 279 | 8.1 | Roman Catholic |
| Immaculata High School | 13.5 |
Regular elementary or secondary | 9-12 | 814 | 13.4 | Roman Catholic |
| Mt St Mary Academy (high School) | 13.9 |
Regular elementary or secondary | 9-12 | 381 | 9.7 | Roman Catholic |
| Hunterdon Learning Center | 14.1 |
Special education | 7-12 | 80 | 6.7 | Nonsectarian |
| Green Brook Academy | 15.1 |
Special education | 7-12 | 57 | 5.9 | Nonsectarian |
| Cornerstone Day School | 16.6 |
Special education | 7-12 | 42 | 8.4 | Nonsectarian |
| The Milton School | 16.9 |
Special education | 8-12 | 36 | 6.0 | Nonsectarian |
| Union Catholic Regional High S | 16.9 |
Regular elementary or secondary | 9-12 | 802 | 15.9 | Roman Catholic |
| Essex Valley School | 17.0 |
Special education | 7-12 | 63 | 6.3 | Nonsectarian |
| High Road School At Somerset | 17.2 |
Special education | 7-12 | 129 | 6.6 | Nonsectarian |
| Pope John Xxiii High School | 18.1 |
Regular elementary or secondary | 9-12 | 938 | 12.9 | Roman Catholic |
| Bishop George Ahr High School | 18.5 |
Regular elementary or secondary | 9-12 | 913 | 15.7 | Roman Catholic |
| Mount Saint Dominic Academy | 18.6 |
Regular elementary or secondary | 9-12 | 334 | 10.6 | Roman Catholic |
| Marylawn Of The Oranges Academy | 19.0 |
Regular elementary or secondary | 9-12 | 197 | 10.2 | Roman Catholic |
| Seton Hall Preparatory School | 19.2 |
Regular elementary or secondary | 9-12 | 972 | 13.4 | Roman Catholic |
| Mother Seton Regional High School | 19.2 |
Regular elementary or secondary | 9-12 | 419 | 15.6 | Roman Catholic |
| Craig Upper School | 19.4 |
Regular elementary or secondary | 9-12 | 55 | 3.7 | Nonsectarian |
| St Joseph High School | 20.0 |
Regular elementary or secondary | 9-12 | 833 | 14.6 | Roman Catholic |
| Roselle Catholic High School | 20.3 |
Regular elementary or secondary | 9-12 | 678 | 15.6 | Roman Catholic |
| Veritas Christian Academy | 20.3 |
Regular elementary or secondary | 9-11 | 39 | 6.2 | Christian (no specific denomination) |
| Disciple Christian Academy | 20.9 |
Regular elementary or secondary | 9-12 | 3 | 3.0 | Church of God |
| Chancellor Academy | 20.9 |
Special education | 8-12 | 96 | 4.4 | Nonsectarian |
| Immaculate Conception High School | 21.0 |
Regular elementary or secondary | 9-12 | 245 | 13.0 | Roman Catholic |
| East Mountain School | 21.7 |
Special education | 7-12 | 118 | 5.1 | Nonsectarian |
| Benedictine Academy | 21.8 |
Regular elementary or secondary | 9-12 | 191 | 12.2 | Roman Catholic |
| St Mary Of The Assumption High School | 22.4 |
Regular elementary or secondary | 9-12 | 265 | 13.4 | Roman Catholic |
| Lakeland-andover School | 22.4 |
Special education | 9-12 | 27 | 6.0 | Nonsectarian |
| St Vincent Academy | 22.5 |
Regular elementary or secondary | 9-12 | 319 | 11.0 | Roman Catholic |
| Benway School | 22.5 |
Special education | 8-12 | 24 | 4.0 | Nonsectarian |
| Sage Day School At Somerset | 22.6 |
Special education | 9-12 | 38 | 3.6 | Nonsectarian |
| St Benedict's Preparatory School | 22.9 |
Regular elementary or secondary | 7-12 | 559 | 14.9 | Roman Catholic |
| St James Preparatory School | 22.9 |
Regular elementary or secondary | 8-12 | 44 | 6.4 | African Methodist Episcopal |
| Alif Muhammad''s Nia School | 23.4 |
Regular elementary or secondary | 8-12 | 172 | 23.6 | Nonsectarian |
| St Patrick High School | 23.9 |
Regular elementary or secondary | 9-12 | 255 | 13.4 | Roman Catholic |
| Mount Carmel Guild High School | 24.1 |
Special education | 9-12 | 58 | 4.4 | Roman Catholic |
