| South Mountain Secure Trmnt Un, PA (District) |
| South Mountain-Hickory Common School District, NY (District) |
| South Newton School Corp, IN (District) |
| South Nodaway Co. R-Iv, MO (District) |
| South O'Brien Comm School District, IA (District) |
| South Orange-Maplewood School District, NJ (District) |
| South Orangetown Central School District, NY (District) |
| South Page Comm School District, IA (District) |
| South Panola School District, MS (District) |
| South Park SD, PA (District) |
| South Pasadena Unified, CA (District) |
| South Pekin SD 137, IL (District) |
| South Pemiscot Co. R-V, MO (District) |
| South Phoenix Academy Inc., AZ (District) |
| South Pike County School District, AR (District) |
