Bands
| Title | City | Information | Category |
|---|---|---|---|
| Scott’s Branch Middle School | Middle School | ||
| Sedgefield Middle School | Middle School | ||
| Seneca Middle School | Middle School | ||
| Seneca Senior High School | High School | ||
| Sevier Middle School | Greenville, SC | Middle School | |
| Silver Bluff High School | High School | ||
| Sims Middle School | Union, SC | Middle School | |
| Sneed Middle School | Middle School | ||
| Socastee High School | High School | ||
| South Aiken Baptist Christian School | Aiken | Elementary School, Middle School |