| Ada County, ID (ISD) |
| Ada Exempted School District, OH (District) |
| Ada-Borup Public School District, MN (District) |
| Adair, OK (District) |
| Adair Co. R-I, MO (District) |
| Adair Co. R-Ii, MO (District) |
| Adair County, MO (ISD) |
| Adair County, KY (Phantom) |
| Adair County, OK (ISD) |
| Adair County, IA (ISD) |
| Adair County Schools, KY (District) |
| Adair-Casey Comm School District, IA (District) |
| Adams, WI (ISD) |
| Adams 1 Mapleton, CO (District) |
| Adams 12 Five Star Schools, CO (District) |
