| Sevier District, UT (District) |
| Sewanhaka Central High School District, NY (District) |
| Seward County, NE (ISD) |
| Seward County, KS (ISD) |
| Seward Public Schools, NE (District) |
| Seymour Comm School District, IA (District) |
| Seymour Community School District, WI (District) |
| Seymour Community Schools, IN (District) |
| Seymour ISD, TX (District) |
| Seymour R-Ii, MO (District) |
| Seymour School District, CT (District) |
| Shackelford County, TX (ISD) |
| Shade-Central City SD, PA (District) |
| Shady Grove, OK (District) |
| Shady Point, OK (District) |
