| Riley County, KS (ISD) |
| Rim of the World Unified, CA (District) |
| Rincon Valley Union Elementary, CA (District) |
| Ringgold County, IA (ISD) |
| Ringgold SD, PA (District) |
| Ringling, OK (District) |
| Ringwood, OK (District) |
| Ringwood School District, NJ (District) |
| Rio Arriba County, NM (ISD) |
| Rio Blanco Boces, CO (District) |
| Rio Blanco Boces, CO (District) |
| Rio Blanco County, CO (ISD) |
| Rio Bravo-Greeley Union Elementary, CA (District) |
| Rio Community School District, WI (District) |
| Rio Dell Elementary, CA (District) |
