| School | Total |
|---|---|
| Immokalee | 2058 |
| Impact Christian (Jacksonville) | 99 |
| Indian Rocks Christian (Largo) | 285 |
| Inlet Grove (Riviera Beach) | 770 |
| Innovation (Ocoee) | 168 |
| Interlachen | 732 |
| International Community (Winter Park) | 121 |
| International Studies (Hollywood) | 201 |
| International Studies (Miami) | 352 |
| Island Coast (Cape Coral) | 1663 |
| J.C. Bermudez (Doral) | 862 |
| Jay | 305 |
| Jefferson (Tampa) | 1316 |
| Jefferson County (Monticello) | 207 |
| Jensen Beach | 1603 |
| Jesuit (Tampa) | 857 |
| John Carroll (Fort Pierce) | 374 |
| John I. Leonard (Greenacres) | 3536 |
| Jones (Orlando) | 1673 |
| Jupiter | 3093 |
| Jupiter Christian | 248 |
| Kathleen (Lakeland) | 2040 |
| Keswick Christian (St. Petersburg) | 187 |
| Key West | 1350 |
| Keys Gate (Homestead) | 690 |