| Maquoketa Valley Comm School District, IA (District) |
| Mar Lee School District, MI (District) |
| Marais Des Cygnes Valley, KS (District) |
| Marana Unified District, AZ (District) |
| Marathon, WI (ISD) |
| Marathon Central School District, NY (District) |
| Marathon City School District, WI (District) |
| Marathon Co Cdeb, WI (District) |
| Marathon ISD, TX (District) |
| Marble City, OK (District) |
| Marble Falls ISD, TX (District) |
| Marblehead, MA (District) |
| Marblehead Community Charter Public (District), MA (District) |
| Marceline R-V, MO (District) |
| Marcellus Central School District, NY (District) |
