| Marin County Office of Education, CA (District) |
| Marin County ROP, CA (District) |
| Marin ESA, CA (ISD) |
| Marine Area Community School, MN (PSA) |
| Marine Village School, MN (PSA) |
| Marinette, WI (ISD) |
| Marinette School District, WI (District) |
| Marion, FL (District) |
| Marion, MA (District) |
| Marion 01, SC (District) |
| Marion 02, SC (District) |
| Marion 07, SC (District) |
| Marion 80, SC (District) |
| Marion Academy, IN (District) |
| Marion C. Early R-V, MO (District) |
