| Marshall W. Errickson School | FREEHOLD | Public school | K–5 | 0 |
| Martha B. Day Elementary School | BLOOMINGDALE | Public school | PK–1 | 0 |
| Martha F. Wilson Early Childhood Development Center | CAMDEN | Public school | PK–K | 0 |
| Martin Center for the Arts | JERSEY CITY | Public school | PK–8 | 0 |
| Martin J. Ryerson School | RINGWOOD | Public school | 6–8 | 0 |
| Martin Luther King Elementary School | PISCATAWAY | Public school | 4–5 | 0 |
| Martin Luther King Elementary School | EDISON | Public school | K–5 | 0 |
| Martin Luther King Jr. School | JERSEY CITY | Public school | PK–8 | 0 |
| Martin Luther King Jr. School No. 6 | Passaic | Public school | PK–8 | 0 |
| Mary A. Hubbard Elementary School | RAMSEY | Public school | PK–3 | 0 |
| Mary Bray Elementary School | MOUNT EPHRAIM | Public school | PK–5 | 0 |
| Mary E. Roberts Elementary School | MOORESTOWN | Public school | PK–3 | 0 |
| Mary E. Volz Elementary School | RUNNEMEDE | Public school | 4–8 | 0 |
| Mary F. Janvier School | FRANKLINVILLE | Public school | PK–2 | 0 |
| Mary J Donohoe Community School | BAYONNE | Public school | PK–8 | 0 |
| Mary Kay McMillin Early Childhood Center | BERKELEY HEIGHTS | Public school | PK–2 | 0 |
| Mary S. Shoemaker School | WOODSTOWN | Public school | K–4 | 0 |
| Mastery Schools of Camden Inc. | Camden | Public school | K–12 | 0 |
| Matawan-Aberdeen Middle School | CLIFFWOOD | Public school | 6–8 | 0 |
| Matawan Regional High School | ABERDEEN | Public school | 9–12 | 0 |
| Matthew Jago Elementary School | SEWAREN | Public school | PK–5 | 0 |
| Maud Abrams School | CAPE MAY | Public school | 3–4 | 0 |
| Maude M. Wilkins Elementary School | MAPLE SHADE | Public school | 2–4 | 0 |
| Maurice Hawk Elementary School | West Windsor | Public school | PK–3 | 0 |
| Maurice River Township School | PORT ELIZABETH | Public school | PK–8 | 0 |
| Mawbey Street Elementary School | WOODBRIDGE | Public school | K–5 | 0 |
| Maxson Middle School | PLAINFIELD | Public school | 6–8 | 0 |
| Maywood Avenue School | MAYWOOD | Public school | 4–8 | 0 |
| Maywood Campus | MAYWOOD | Public school | PK–6 | 0 |
| McGalliard Elementary School | HAMILTON | Public school | K–5 | 0 |
| McKenzie School | EAST RUTHERFORD | Public school | PK–3 | 0 |
| McKinley Avenue Elementary School | Manahawkin | Public school | 3–4 | 0 |
| McKinley Community School | NEW BRUNSWICK | Public school | PK–8 | 0 |
| McKinley Elementary School | NORTH BERGEN | Public school | PK–6 | 0 |
| McKinley Elementary School | Westfield | Public school | 1–5 | 0 |
| McKinley Elementary School | NEWARK | Public school | PK–8 | 0 |
| MCVS Arthur R. Sypek Center | PENNINGTON | Public school | 11–12 | 0 |
| MCVS Assunpink Shared Time Center/Rubino | Trenton | Public school | 7–12 | 0 |
| Meadowbrook | EATONTOWN | Public school | PK–1 | 0 |
| Meadowbrook | HILLSDALE | Public school | PK–5 | 0 |
| Medford Memorial Middle School | MEDFORD | Public school | 7–8 | 0 |
| Medicine Innovation Government and Environmental Science | Denville | Public school | 9–12 | 0 |
| Melvin H. Kreps Middle School | EAST WINDSOR | Public school | 6–8 | 0 |
| Memorial Elementary School | LAURENCE HARBOR | Public school | K–5 | 0 |
| Memorial Elementary School | Montvale | Public school | PK–4 | 0 |
| Memorial Elementary School | Pitman | Public school | PK–1 | 0 |
| Memorial Elementary School | EAST BRUNSWICK | Public school | K–4 | 0 |
| Memorial Elementary School | NORTH HALEDON | Public school | PK–4 | 0 |
| Memorial Elementary School | PARAMUS | Public school | PK–4 | 0 |
| Memorial Elementary School | FREEHOLD | Public school | K–5 | 0 |