| St Louis Lang Immersion School, MO (District) |
| St Maries Joint District, ID (District) |
| St Mary'S Academy Charter School, TX (PSA) |
| St Marys Area SD, PA (District) |
| St Marys County, MD (ISD) |
| St Paul Conservatory Performing Art, MN (District) |
| St Paul Public Schools, NE (District) |
| St Paul Sd 45, OR (District) |
| St Regis K-12 Schools, MT (District) |
| St Rose SD 14-15, IL (District) |
| St Thomas 43, ND (District) |
| St Vrain Valley Re 1J, CO (District) |
| St. Anne Unit District 24, IL (District) |
| St. Anthony-New Brighton Schools, MN (District) |
| St. Bernard Parish, LA (ISD) |
