| Charles Henderson High School | - | Varsity | Small | 0 | | |
| Charles J. Colgan High School | - | Varsity | Small | 0 | | |
| Charleston Catholic High School | - | Varsity | Small | 0 | | |
| Charlestown High School | - | Varsity | Small | 0 | | |
| Charlotte Catholic High School | - | Varsity | - | 0 | | |
| Charlotte Catholic High School | - | Varsity | Small | 0 | | |
| Charlotte Catholic High School | - | Varsity | Small | 0 | | |
| Charlotte Catholic High School | - | Varsity | Small | 0 | | |
| Charlotte Secondary School | - | Varsity | - | 0 | | |
| Charter Oak High School | - | Junior Varsity | Medium | 0 | | |
| Chartiers Houston School | - | Varsity | Small | 0 | | |
| Chatfield High School | - | Varsity | Medium | 0 | | |
| Chatfield High School | - | Varsity | Small | 0 | | |
| Cheatham County High School | - | Varsity | Small | 0 | | |
| Chenango Valley High School | - | Varsity | Small | 0 | | |
| Chenango Valley High School | - | Varsity | Small | 0 | | |
| Cherokee Trail High School | - | Varsity | Small | 0 | | |
| Cherokee Trail High School | - | Varsity | Small | 0 | | |
| Cherokee Trail High School | - | Varsity | - | 0 | | |
| Cherry Creek High School | - | Junior | Small | 0 | | |
| Cherryville High School | - | Varsity | Small | 0 | | |
| Cherryville High School | - | Varsity | Small | 0 | | |
| Cherryville High School | - | Varsity | Small | 0 | | |
| Cheshire High School | - | Varsity | Small | 0 | | |
| Chester Charter Scholars Academy | - | Varsity | Small | 0 | | |