| Stewartstown School District, NH (District) |
| Stewartsville C-2, MO (District) |
| Stewartville Public School District, MN (District) |
| Stidham, OK (District) |
| Stigler, OK (District) |
| Stillwater, OK (District) |
| Stillwater, MT (District) |
| Stillwater Area Public School Dist., MN (District) |
| Stillwater Central School District, NY (District) |
| Stillwater County, MT (ISD) |
| STILLWATER TOWNSHIP SCHOOL, NJ (District) |
| Stillwater/Swt Grass Coop, MT (District) |
| Stilwell, OK (District) |
| Stinckney School District, SD (District) |
| Sto-Rox SD, PA (District) |
