| Mercedes ISD, TX (District) |
| Mercer Area SD, PA (District) |
| Mercer County, ND (ISD) |
| Mercer County, MO (ISD) |
| Mercer County, IL (ISD) |
| Mercer County, PA (ISD) |
| Mercer County, KY (Phantom) |
| Mercer County, WV (ISD) |
| Mercer County Career Center, PA (District) |
| Mercer County Educational Service Center, OH (ISD) |
| Mercer County School District 404, IL (District) |
| Mercer County Schools, KY (District) |
| Mercer County Schools, NJ (ISD) |
| Mercer County Schools, WV (District) |
| Mercer County Special Services School District, NJ (District) |
