| Ida B Wells High School | - | Varsity | Small | 0 | | |
| IDEA South Flores | - | Varsity | Small | 0 | | |
| Imagine Prep at Surprise | - | Varsity | - | 0 | | |
| Immaculata High School | - | Varsity | Large | 0 | | |
| Immaculata High School | - | Varsity | Medium | 0 | | |
| Immaculata High School | - | Varsity | Medium | 0 | | |
| Immaculata High School | - | Varsity | Medium | 0 | | |
| Independence High School | - | Varsity | Large | 0 | | |
| Independence High School | - | Varsity | Large | 0 | | |
| Independence High School | - | Varsity | Medium | 0 | | |
| Independence High School | - | Varsity | Small | 0 | | |
| Indian Hill High School | - | Varsity | - | 0 | | |
| Indian Hill High School | - | Varsity | - | 0 | | |
| Indian Trail High School | - | Varsity | Small | 0 | | |
| Indian Valley High School | - | Varsity | - | 0 | | |
| Ingomar High School | - | Varsity | Small | 0 | | |
| Ingomar High School | - | Varsity | - | 0 | | |
| Interboro High School | - | Varsity | Small | 0 | | |
| Interlachen High School | - | Varsity | - | 0 | | |
| Iola High School | - | Varsity | Small | 0 | | |
| Iolani School | - | - | Small | 0 | | |
| Iolani School | - | Varsity | Small | 0 | | |
| Ironwood High School | - | - | Large | 0 | | |
| Ironwood High School | - | Varsity | Small | 0 | | |
| Ironwood High School | - | Varsity | Medium | 0 | | |
| Irvine High School | - | Varsity | Medium | 0 | | |
| Irvine High School | - | Varsity | - | 0 | | |
| Irvington High School | - | Varsity | - | 0 | | |
| Island Trees High School | - | Varsity | Small | 0 | | |
| Issaquah High School | - | Varsity | Small | 0 | | |
| Italy High School | - | Varsity | Small | 0 | | |
| Itawamba Agricultural High School | - | Varsity | - | 0 | | |
| Jack C Hays High School | - | Varsity | - | 0 | | |
| Jack C Hays High School | - | Varsity | Large | 0 | | |
| Jack C Hays High School | - | Varsity | - | 0 | | |
| Jack C Hays High School | - | Varsity | - | 0 | | |
| Jacksboro High School | - | Varsity | Large | 0 | | |
| Jacksboro High School | - | Varsity | Small | 0 | | |
| Jackson High School | - | Varsity | Large | 0 | | |
| Jackson High School | - | Varsity | - | 0 | | |
| Jackson High School | - | Varsity | - | 0 | | |
| Jackson High School | - | Varsity | - | 0 | | |
| Jackson High School | - | Varsity | Small | 0 | | |
| Jackson High School | - | Varsity | - | 0 | | |
| Jackson Memorial High School | - | Varsity | Small | 0 | | |
| Jackson Memorial High School | - | Varsity | Medium | 0 | | |
| Jackson Memorial High School | - | Varsity | Small | 0 | | |
| Jacksonville High School | - | Varsity | - | 0 | | |
| Jacksonville High School | - | Varsity | - | 0 | | |
| Jacksonville High School | - | Varsity | Large | 0 | | |