| St. Marys Cathedral School | Miami | Private school | K–8 | 0 |
| St. Mary Magdalen Catholic School | Altamonte Springs | Private school | PK–8 | 0 |
| St. Mary Catholic School | Fort Walton Beach | Private school | PK–8 | 0 |
| St. Martha Catholic Schcol | Sarasota | Private school | PK–8 | 0 |
| St. Mark's Episcopal School | Palm Beach Gardens | Private school | PK–8 | 0 |
| St. Mark's Episcopal School | Oakland Park | Private school | PK–8 | 0 |
| St. Mark's Episcopal Academy | Cocoa | Private school | PK–6 | 0 |
| St. Margaret Mary Catholic School | Winter Park | Private school | PK–8 | 0 |
| St. Lukes Lutheran School | Oviedo | Private school | PK–8 | 0 |
| ST. LUCIE WEST K-8 SCHOOL | PORT ST LUCIE | Public school | K–8 | 0 |
| ST. LUCIE WEST CENTENNIAL HIGH | PORT ST LUCIE | Public school | 9–12 | 0 |
| ST. LUCIE VIRTUAL INSTRUCTION PROGRAM | PORT ST LUCIE | Public school | K–12 | 0 |
| ST. LUCIE ELEMENTARY SCHOOL | FORT PIERCE | Public school | PK–5 | 0 |
| ST. LUCIE DETENTION CENTER | FORT PIERCE | Public school | K–12 | 0 |
| ST LUCIE COUNTY JAIL - ROCK ROAD ACADEMY | FT PIERCE | Public school | 6–12 | 0 |
| St. Louis Covenant School | Pinecrest | Private school | PK–8 | 0 |
| St. Lawrence School | North Miami Beach | Private school | K–8 | 0 |
| St. Lawrence Catholic School | Tampa | Private school | PK–8 | 0 |
| St. Juliana Catholic School | West Palm Beach | Private school | PK–8 | 0 |
| St. Jude Catholic School | Boca Raton | Private school | PK–8 | 0 |
| St. Jude Cathedral School | St. Petersburg | Private school | PK–8 | 0 |
| St. Joseph's Episcopal School | Boynton Beach | Private school | PK–8 | 0 |
| St. Joseph Catholic School Tampa | Tampa | Private school | PK–8 | 0 |
| St. Joseph Catholic School | Winter Haven | Private school | PK–8 | 0 |
| St. Joseph Catholic School | Palm Bay | Private school | PK–8 | 0 |
| St. Joseph Catholic School | Stuart | Private school | PK–8 | 0 |
| St. Joseph Catholic School | Jacksonville | Private school | PK–8 | 0 |
| ST. JOHNS VIRTUAL INSTRUCTIONAL PROGRAM | ST AUGUSTINE | Public school | K–12 | 0 |
| ST. JOHNS VIRTUAL INSTRUCTION PROGRAM K-8 | ST AUGUSTINE | Public school | K–8 | 0 |
| ST. JOHNS VIRTUAL FRANCHISE | ST AUGUSTINE | Public school | K–12 | 0 |
| ST. JOHNS TECHNICAL HIGH SCHOOL | ST AUGUSTINE | Public school | 8–12 | 0 |
| St. John's Episcopal School | Homestead | Private school | PK–8 | 0 |
| St. Johns Episcopal Parish Day School | Tampa | Private school | PK–8 | 0 |
| ST. JOHNS COUNTY JAIL (DJJ) | HASTINGS | Public school | 9–12 | 0 |
| St. Johns Country Day School | Orange Park | Private school | PK–12 | 0 |
| ST. JOHNS COMMUNITY CAMPUS | ST AUGUSTINE | Public school | 9–12 | 0 |
| ST. JOHNS CLASSICAL ACADEMY ORANGE PARK | ORANGE PARK | Public school | K–12 | 0 |
| ST JOHNS CLASSICAL ACADEMY | FLEMING ISLAND | Public school | PK–12 | 0 |
| St. Johns Christian School | Palatka | Private school | K–12 | 0 |
| St. John Vianney Catholic School | Orlando | Private school | PK–8 | 0 |
| St. John Vianney Catholic School | St. Pete Beach | Private school | PK–8 | 0 |
| St. John The Evangelist Catholic School | Pensacola | Private school | PK–8 | 0 |
| St. John The Apostle School | Hialeah | Private school | PK–8 | 0 |
| St. John Paul II Catholic High School | Tallahassee | Private school | 9–12 | 0 |
| St. John Neumann School | Miami | Private school | PK–8 | 0 |
| St. John Neumann Catholic High School | Naples | Private school | 9–12 | 0 |
| St. John Lutheran School | Ocala | Private school | PK–12 | 0 |
| St. John Catholic School | Panama City | Private school | K–8 | 0 |
| St. Joan Of Arc School | Boca Raton | Private school | PK–8 | 0 |
| St. Jerome Catholic School | Fort Lauderdale | Private school | PK–8 | 0 |