| Silver Creek | - | Varsity | Small | 0 | | |
| Silver Creek High School | - | Varsity | Small | 0 | | |
| Silver Creek High School | - | Varsity | Medium | 0 | | |
| Silver Creek High School | - | Varsity | Small | 0 | | |
| Silver Creek High School | - | Varsity | Small | 0 | | |
| Silverado High School | - | Varsity | Small | 0 | | |
| Simon Kenton High School | - | Varsity | Large | 0 | | |
| Simon Kenton High School | - | Varsity | Medium | 0 | | |
| Simon Kenton High School | - | Varsity | Medium | 0 | | |
| Simon Kenton High School | - | Varsity | Medium | 0 | | |
| Simon Kenton High School | - | Varsity | Small | 0 | | |
| Skutt Catholic High School | - | Varsity | Small | 0 | | |
| Skutt Catholic High School | - | Varsity | Small | 0 | | |
| Sky View High School | - | Varsity | Large | 0 | | |
| Sky View High School | - | Varsity | Medium | 0 | | |
| Sky View High School | - | Varsity | Medium | 0 | | |
| Skyline High School | - | Varsity | Large | 0 | | |
| Skyline High School | - | Varsity | Small | 0 | | |
| Skyline High School | - | Varsity | Large | 0 | | |
| Skyline High School | - | Varsity | - | 0 | | |
| Skyline High School | - | Varsity | Small | 0 | | |
| Skyridge High School | - | Varsity | Small | 0 | | |
| Skyridge High School | - | - | - | 0 | | |
| Skyridge High School | - | Varsity | Small | 0 | | |
| SLA at Beeber High School | - | Varsity | Medium | 0 | | |
| SLA at Beeber High School | - | Varsity | - | 0 | | |
| SLAM NEVADA | - | Varsity | - | 0 | | |
| Slidell High School | - | Varsity | Large | 0 | | |
| Slidell High School | - | Varsity | - | 0 | | |
| Smith County High School | - | Varsity | Medium | 0 | | |
| Smiths Station High School | - | Varsity | Medium | 0 | | |
| Smiths Station High School | - | Varsity | - | 0 | | |
| Smithson Valley High School | - | Varsity | - | 0 | | |
| Smithson Valley High School | - | Varsity | - | 0 | | |
| Smithson Valley High School | - | Junior | - | 0 | | |
| Smithson Valley High School | - | Varsity | Large | 0 | | |
| Smithson Valley High School | - | Varsity | - | 0 | | |
| Smithtown High School East | - | Varsity | Small | 0 | | |
| Smithtown High School East | - | Varsity | Small | 0 | | |
| Smithtown High School East | - | Varsity | Small | 0 | | |
| Smithtown High School East | - | Varsity | Medium | 0 | | |
| Smithtown High School West | - | Varsity | Medium | 0 | | |
| Smithtown High School West | - | Varsity | Small | 0 | | |
| Smithtown High School West | - | Varsity | Medium | 0 | | |
| Smithtown High School West | - | Varsity | - | 0 | | |
| Smithtown High School West | - | Varsity | Medium | 0 | | |
| Smithville High School | - | Varsity | Medium | 0 | | |
| Smithville High School | - | Junior | - | 0 | | |
| Smoky Hill High School | - | Varsity | Large | 0 | | |
| Smoky Hill High School | - | Varsity | Small | 0 | | |