| Regional School District 18, CT (District) |
| Regional School District 19, CT (District) |
| Regn 6 And 8-Sw/Wc Srv Cooperative, MN (District) |
| Reichle Elem, MT (District) |
| Reid Traditional Schools' Painted Rock Academy Inc., AZ (District) |
| Relevant Academy of Eaton County, MI (PSA) |
| Remington-Whitewater, KS (District) |
| Remsen Central School District, NY (District) |
| Remsen-Union Comm School District, IA (District) |
| Remsenburg-speonk Union Free School District, NY (District) |
| Renaissance Academy, UT (PSA) |
| Renaissance Academy Charter School, IN (District) |
| Renaissance Academy Charter-Arts, NY (PSA) |
| Renaissance Academy Cs, PA (PSA) |
| Renaissance Charter School (the), NY (PSA) |
