| Richmond Heights Local School District, OH (District) |
| Richmond Prep Cs, NY (PSA) |
| Richmond R-Xvi, MO (District) |
| Richmond School District, WI (District) |
| Richmond-Burton CHSD 157, IL (District) |
| Richton School Dist, MS (District) |
| Richwoods R-Vii, MO (District) |
| Riddle Sd 70, OR (District) |
| Ridge and Valley Charter School, NJ (District) |
| Ridge Park Charter Academy, MI (PSA) |
| Ridgedale Local School District, OH (District) |
| Ridgefield Park Township, NJ (District) |
| Ridgefield Public Schools, NJ (District) |
| Ridgefield School District, WA (District) |
| Ridgefield School District, CT (District) |
