| Senath-Hornersville C-8, MO (District) |
| Senatobia Municipal School Dist, MS (District) |
| Seneca CCSD 170, IL (District) |
| Seneca County, NY (ISD) |
| Seneca Falls Central School District, NY (District) |
| Seneca Highlands Career And Technical Center, PA (District) |
| Seneca R-Vii, MO (District) |
| Seneca School District, WI (District) |
| Seneca Twp HSD 160, IL (District) |
| Seneca Valley SD, PA (District) |
| Seneca-East Local School District, OH (District) |
| Sentinel, OK (District) |
| Sentinel Elementary District, AZ (District) |
| Sentral Comm School District, IA (District) |
| Sequatchie County, TN (ISD) |
