| Schuylkill Valley High School | - | Varsity | - | 0 | | |
| Scott County High School | - | Varsity | Large | 0 | | |
| Scott High School | - | Varsity | Medium | 0 | | |
| Scottsboro High School | - | Varsity | Medium | 0 | | |
| Scottsboro High School | - | Varsity | - | 0 | | |
| Scottsburg High School | - | Varsity | Large | 0 | | |
| Scottsburg High School | - | Varsity | Large | 0 | | |
| Scottsburg High School | - | Varsity | - | 0 | | |
| Scurry-Rosser High School | - | Varsity | Medium | 0 | | |
| Seabreeze High School | - | Varsity | Small | 0 | | |
| Seabreeze High School | - | Varsity | Small | 0 | | |
| Seaford High School | - | Varsity | Large | 0 | | |
| Seaford High School | - | Varsity | Small | 0 | | |
| Seaholm High School | - | Varsity | - | 0 | | |
| Sebastian River High School | - | Varsity | Small | 0 | | |
| Sebastian River High School | - | Varsity | - | 0 | | |
| Sebastopol High School | - | Varsity | - | 0 | | |
| Seckman High School | - | Varsity | Large | 0 | | |
| Seckman High School | - | Varsity | - | 0 | | |
| Seckman High School | - | Varsity | Large | 0 | | |
| Seckman High School | - | Varsity | Medium | 0 | | |
| Seckman High School | - | Varsity | Medium | 0 | | |
| Seckman High School | - | Varsity | - | 0 | | |
| Second Baptist High School | - | Varsity | Large | 0 | | |
| Section High School | - | Varsity | Small | 0 | | |
| Section High School | - | Varsity | - | 0 | | |
| Seguin High School | - | Varsity | - | 0 | | |
| Seminary High School | - | Varsity | Large | 0 | | |
| Seminary High School | - | Varsity | Medium | 0 | | |
| Seminary High School | - | Varsity | Medium | 0 | | |
| Seminole Ridge High School | - | Varsity | Large | 0 | | |
| Senatobia High School | - | Varsity | Small | 0 | | |
| Senatobia High School | - | Varsity | Medium | 0 | | |
| Senatobia High School | - | Varsity | Medium | 0 | | |
| Senatobia High School | - | Varsity | Medium | 0 | | |
| Seneca Valley High School | - | Varsity | Large | 0 | | |
| Seneca Valley High School | - | Varsity | Large | 0 | | |
| Seneca Valley High School | - | Varsity | Medium | 0 | | |
| Seneca Valley High School | - | Varsity | Small | 0 | | |
| Seneca Valley High School | - | Varsity | Small | 0 | | |
| Sequin High School | - | Varsity | Large | 0 | | |
| Sequoia High School | - | Varsity | - | 0 | | |
| Sequoyah High School | - | Varsity | Medium | 0 | | |
| Serra Catholic High School | - | Varsity | Small | 0 | | |
| Seton Catholic High School | - | Varsity | Small | 0 | | |
| Seton Catholic High School | - | Varsity | - | 0 | | |
| Seton Catholic High School | - | Varsity | Small | 0 | | |
| Seton High School | - | Varsity | Small | 0 | | |
| Seton High School | - | Varsity | Small | 0 | | |
| Seven Lakes High School | - | Varsity | Large | 0 | | |