| Rsu 75/Msad 75, ME (District) |
| Rsu 78, ME (District) |
| Rsu 79/Msad 01, ME (District) |
| Rsu 80/Msad 04, ME (District) |
| Rsu 82/Msad 12, ME (District) |
| Rsu 83/Msad 13, ME (District) |
| Rsu 84/Msad 14, ME (District) |
| Rsu 85/Msad 19, ME (District) |
| Rsu 86/Msad 20, ME (District) |
| Rsu 87/Msad 23, ME (District) |
| Rsu 88/Msad 24, ME (District) |
| Rtr Public Schools, MN (District) |
| Rubicon J6 School District, WI (District) |
| Rudd-Rockford-Marble Rk Comm School District, IA (District) |
| Rudyard Area Schools, MI (District) |
