All | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| Saint Patrick's Institution | |
| SALO Baltic International OU | |
| Sdr.Omme State Prison | |
| Send | South east |
| Shepton Mallet | South west |
| Shrewsbury | Midlands |
| Special Hospital Rampton | |
| Stafford | Midlands |
| Standford Hill | South east |
| Stocken | Midlands |
| Stoke Heath | Midlands |
| Styal | North west |
| Sudbury | Midlands |
| Swaleside | South east |
| Swansea | Wales |
| Swinfen Hall | Midlands |