| Slayton, MN (Township) |
| Slayton, MN (City) |
| Sledge, MS (Town) |
| Sleepy Eye, MN (City) |
| Sleepy Hollow, NY (Village) |
| Sleepy Hollow, IL (Village) |
| Sletten, MN (Township) |
| Slick, OK (Town) |
| Slidell, LA (City) |
| Sligo, PA (Borough) |
| Slinger Village, WI (Village) |
| Slippery Rock, PA (Borough) |
| Slippery Rock Township, PA (Township) |
| Slippery Rock Township, PA (Township) |
| Sloan, IA (City) |
