| St. Paul School of Northern Lights, MN (PSA) |
| St. Peter Public School District, MN (District) |
| St. Tammany Parish, LA (ISD) |
| St. Tammany Parish, LA (District) |
| Stafford, KS (District) |
| Stafford, VA (District) |
| Stafford County, KS (ISD) |
| Stafford Msd, TX (District) |
| Stafford School District, CT (District) |
| Stafford Township School District, NJ (District) |
| Stambaugh Charter Academy, OH (PSA) |
| Stamford Academy, CT (District) |
| Stamford Central School District, NY (District) |
| Stamford Charter School for Excellence District, CT (District) |
| Stamford ISD, TX (District) |
