| Ridgeland SD 122, IL (District) |
| Ridgeline Academy A Challenge Foundation Academy, AZ (District) |
| Ridgemont Local School District, OH (District) |
| Ridgeview CUSD 19, IL (District) |
| Ridgeway Community School, MN (District) |
| Ridgeway R-V, MO (District) |
| Ridgewood CHSD 234, IL (District) |
| Ridgewood Local School District, OH (District) |
| Ridgewood Public Schools, NJ (District) |
| Ridgway Area SD, PA (District) |
| Ridgway R-2, CO (District) |
| Ridley SD, PA (District) |
| Riesel ISD, TX (District) |
| Riley CCSD 18, IL (District) |
| Riley County, KS (District) |
