Schools
| Name | Years | Students |
|---|---|---|
| Lower Cape May Regional | 3 | 3 |
| Lyndhurst | 27 | 67 |
| Madison | 1 | 2 |
| Madison High School | 38 | 119 |
| Madison Township, Old Bridge | 1 | 1 |
| Mahwah | 31 | 78 |
| Mainland | 21 | 38 |
| Manalapan | 14 | 29 |
| Manasquan | 7 | 17 |
| Manasquan | 1 | 3 |
| Manchester Regional, North Haledon | 16 | 24 |
| Manville | 1 | 1 |
| 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 |