| Cornerstone Christian School | - | - | - | 0 | | |
| Cornerstone Christian School | - | Varsity | Small | 0 | | |
| Corona Del Sol High School | - | Junior | - | 0 | | |
| Corona Del Sol High School | - | Junior | - | 0 | | |
| Costa Mesa High School | - | Varsity | Small | 0 | | |
| Cox Mill High School | - | Varsity | Small | 0 | | |
| Crean Lutheran High School | - | Varsity | Small | 0 | | |
| Crean Lutheran High School | - | Varsity | Small | 0 | | |
| Crean Lutheran High School | - | Varsity | Small | 0 | | |
| Creek Wood High School | - | Varsity | Small | 0 | | |
| Creek Wood High School | - | Varsity | Small | 0 | | |
| Creekside High School | - | Varsity | Medium | 0 | | |
| Creekside High School | - | Varsity | - | 0 | | |
| Crestview High School | - | Varsity | Small | 0 | | |
| Crestview High School | - | Varsity | Small | 0 | | |
| Crestwood High School | - | Varsity | Small | 0 | | |
| Crestwood High School | - | Varsity | Small | 0 | | |
| Crestwood High School | - | Varsity | Small | 0 | | |
| Crestwood High School | - | Varsity | Small | 0 | | |
| Crete High School | - | Varsity | Small | 0 | | |
| Crimson Cliffs High School | - | Varsity | Small | 0 | | |
| Crimson Cliffs High School | - | Varsity | Small | 0 | | |
| Crimson Cliffs High School | - | Varsity | Small | 0 | | |
| Cross Roads High School | - | Varsity | Small | 0 | | |
| Crossings Christian School | - | Varsity | Small | 0 | | |