Schools
| Name | Years | Students |
|---|---|---|
| Rancocas Valley Regional, Mount Holly | 16 | 72 |
| Randolph | 40 | 129 |
| Ranney | 6 | 7 |
| Raritan Township | 13 | 22 |
| Red Bank | 20 | 38 |
| Red Bank Catholic | 2 | 3 |
| Red Bank Regional | 17 | 47 |
| Ridge | 43 | 256 |
| Ridgefield | 7 | 16 |
| Ridgefield Memorial | 27 | 204 |
| Ridgefield Park | 6 | 12 |
| Ridgewood | 62 | 327 |
| River Dell Regional | 21 | 50 |
| Riverside | 15 | 24 |
| Robbinsville HS | 9 | 25 |
| Roselle | 1 | 3 |
| Roselle Park | 10 | 25 |
| Roxbury | 52 | 355 |
| Rumson-Fair Haven | 23 | 53 |
| Rutgers Prep | 22 | 45 |