| The Titusville Academy | 4.2 |
Special education | 1-12 | 86 | 7.8 | Nonsectarian |
| The Pennington School | 6.1 |
Regular elementary or secondary | 6-12 | 473 | 6.2 | Methodist |
| Villa Victoria Academy | 8.2 |
Regular elementary or secondary | KG-12 | 213 | 7.9 | Roman Catholic |
| The Studio For Experiential Learning | 9.0 |
Alternative/other | 3-12 | 12 | 2.8 | Nonsectarian |
| Princeton Child Development Institute | 9.2 |
Special education | Ungraded-Ungraded | 29 | 3.6 | Nonsectarian |
| The Bridge Academy | 10.7 |
Special education | Ungraded-Ungraded | 63 | 3.8 | Nonsectarian |
| Princeton Day School | 11.3 |
Regular elementary or secondary | Pre-KG-12 | 888 | 7.9 | Nonsectarian |
| The Hun School Of Princeton | 11.6 |
Regular elementary or secondary | 6-12 | 579 | 8.2 | Nonsectarian |
| Center For Educ Advancement-spring Run School | 11.8 |
Special education | Ungraded-Ungraded | 32 | 8.9 | Nonsectarian |
| The Garvey School | 12.1 |
Regular elementary or secondary | Pre-KG-11 | 35 | 4.1 | Nonsectarian |
| Sr Georgine School | 13.2 |
Special education | Ungraded-Ungraded | 16 | 3.2 | Nonsectarian |
| Rock Brook School Inc | 13.2 |
Special education | Ungraded-Ungraded | 50 | 4.3 | Nonsectarian |
| Newgrange School | 13.3 |
Special education | 2-12 | 108 | 3.4 | Nonsectarian |
| Newgrange School & Educational Outreach Ctr | 13.3 |
Special education | 2-12 | 105 | 2.3 | Nonsectarian |
| Trenton Catholic School | 13.8 |
Regular elementary or secondary | KG-12 | 493 | 10.0 | Roman Catholic |
| Eden Institute | 14.3 |
Special education | Pre-KG-Pre-KG | 46 | 4.6 | Nonsectarian |
| Delaware Valley School For Exceptional Children | 15.9 |
Special education | Ungraded-Ungraded | 24 | 6.0 | Nonsectarian |
| Montessori Country Day School | 16.4 |
Montessori | Ungraded-Ungraded | 100 | 10.0 | Nonsectarian |
| Noor-ul-iman School | 17.6 |
Regular elementary or secondary | Pre-KG-12 | 399 | 9.8 | Islamic |
| The Midland School | 19.4 |
Special education | Ungraded-Ungraded | 244 | 6.4 | Nonsectarian |
| St Mary's Hall - Doane Academy | 19.6 |
Regular elementary or secondary | Pre-KG-12 | 193 | 6.1 | Episcopal |
| Life Center Academy | 20.3 |
Regular elementary or secondary | Pre-KG-12 | 310 | 13.8 | Assembly of God |
| Jerry Davis Early Childhood Center | 20.7 |
Special education | Pre-KG-Pre-KG | 8 | 8.0 | Nonsectarian |
| Meadow View Junior Academy | 20.9 |
Regular elementary or secondary | Pre-KG-10 | 62 | 10.3 | Seventh-Day Adventist |
| Stepping Stone School | 22.7 |
Special education | 1-9 | 37 | 5.3 | Nonsectarian |
| Somerset Bible Baptist Christian Academy | 23.6 |
Regular elementary or secondary | KG-12 | 45 | 9.0 | Christian (no specific denomination) |
| Somerset Hills Learning Institute | 23.7 |
Special education | Ungraded-Ungraded | 21 | 2.3 | Nonsectarian |
| Garfield Park Academy | 23.7 |
Special education | 1-12 | 153 | 6.8 | Nonsectarian |
| Rutgers Preparatory School | 24.1 |
Regular elementary or secondary | Pre-KG-12 | 687 | 6.7 | Nonsectarian |
| The Pingry School | 24.9 |
Regular elementary or secondary | KG-12 | 1053 | 6.8 | Nonsectarian |
| Montessori Academy Of New Jersey | 24.9 |
Montessori | Ungraded-Ungraded | 133 | 26.6 | Nonsectarian |
