| School | State | Tuition | Students | International Students | SAT | Type and Grade |
|---|---|---|---|---|---|---|
| Ranch Hope For Boys, Inc. | -- | 46 | -- | -- | Grades 7-12 | |
| Ranney School | $40,520 | 776 | -- | 1345 | Nursery-12 | |
| Red Bank Catholic High School | $17,052 | 790 | 3.7% | 1102 | 9-12 Boarding International students | |
| Roselle Catholic High School | $11 | 572 | -- | -- | Grades 9-12 | |
| The Rugby School | -- | 116 | -- | -- | Grades 2-12 | |
| Rutgers Preparatory School | $51,040 | 691 | 12% | 1324 | PreK-12 | |
| Saddle River Day School | $52,000 | 500 | 6% | 1250 | PreK-12 | |
| Sage Day At Boonton | -- | 53 | -- | -- | Grades 9-12 | |
| St. Dominic Academy | $43,690 | 250 | 0.8% | 1150 | 7-12 | |
| Saint John Vianney High School | $16,616 | 1000 | 3% | 1230 | 9-12 | |
| St. Joseph Regional High School | $19,200 | 500 | -- | 1115 | 9-12 | |
| St. Rose High School | $12,000 | 520 | 3.43% | -- | Grades 9-12 | |
| Seton Hall Preparatory School | $24,200 | 975 | 1.5% | 1280 | 9-12 | |
| Stuart Country Day School | $50,120 | 335 | 13% | 1358 | PreSchool-12 | |
| Trenton Catholic School | $9,900 | 587 | -- | -- | Grades Prekindergarten-12 | |
| Union Catholic Regional High School | $22,740 | 650 | 7% | 1038 | Grades 9-12 | |
| The Wardlaw-Hartridge School | $52,600 | 441 | 7% | 1310 | PreK-12 | |
| Wildwood Catholic High School | $8,950 | 175 | 5% | -- | Grades 9-12 | |
| Abington Friends School | $51,850 | 600 | 12% | 1270 | Preschool-12 | |
| Academy of the New Church Secondary Schools | $30,545 | 229 | -- | 1270 | 9-12 |