| Marshalltown Comm School District, IA (District) |
| Marshfield, MA (District) |
| Marshfield R-I, MO (District) |
| Marshfield School Department, ME (District) |
| Marshfield Unified School District, WI (District) |
| Marsing Joint District, ID (District) |
| Mart ISD, TX (District) |
| Martensdale-St Marys Comm School District, IA (District) |
| Martha'S Vineyard Charter (District), MA (District) |
| Marthas Vineyard, MA (District) |
| Martin, FL (District) |
| Martin County, MN (ISD) |
| Martin County, IN (ISD) |
| Martin County, FL (ISD) |
| Martin County, TX (ISD) |
