Schools
| Name | Years | Students |
|---|---|---|
| Maplewood | 1 | 1 |
| Maplewood, Benedictine Academy | 1 | 1 |
| Margate | 1 | 1 |
| Margate City | 1 | 1 |
| Marlboro | 32 | 59 |
| Matawan | 1 | 1 |
| Matawan-Aberdeen | 40 | 103 |
| Mater Dei | 1 | 1 |
| Maywood | 1 | 2 |
| Memorial, Cedar Grove | 7 | 20 |
| Mendham | 5 | 15 |
| Merchantville | 10 | 29 |
| Metuchen | 16 | 25 |
| Metuchen | 1 | 2 |
| Middle Township, Cape May Court House | 8 | 9 |
| Middlesex | 14 | 26 |
| Middletown | 5 | 10 |
| Middletown North | 21 | 44 |
| Middletown South | 8 | 9 |
| Middletown Township | 11 | 23 |