| Stringtown, OK (District) |
| Strong Foundations Charter School, NH (District) |
| Strong-Huttig School District, AR (District) |
| Strongsville Academy, OH (PSA) |
| Strongsville City School District, OH (District) |
| Strother, OK (District) |
| Stroud, OK (District) |
| Stroudsburg Area SD, PA (District) |
| Struthers City School District, OH (District) |
| Stryker Local School District, OH (District) |
| Stuart, OK (District) |
| Stuart Public Schools, NE (District) |
| Student Athlete Headquarters, NM (PSA) |
| Sturbridge, MA (District) |
| Sturgeon Bay School District, WI (District) |
