| Switzerland Of Ohio Local School District, OH (District) |
| Sycamore Community City School District, OH (District) |
| Sycamore CUSD 427, IL (District) |
| Sylacauga City, AL (District) |
| Sylvan Grove, KS (District) |
| Sylvan Heights Science Cs, PA (PSA) |
| Sylvan Union Elementary, CA (District) |
| Sylvania City CTPD, OH (District) |
| Sylvania City School District, OH (District) |
| Symmes Valley Local School District, OH (District) |
| Syosset Central School District, NY (District) |
| Syracuse, KS (District) |
| Syracuse Academy of Science and Citizenship Charter School, NY (PSA) |
| Syracuse Academy Of Science Charter School, NY (PSA) |
| Syracuse Arts Academy, UT (PSA) |
