| Sopchoppy , FL (City) |
| Soper, OK (Town) |
| Soperton, GA (City) |
| Sophia, WV (Town) |
| Sorenson, ND (Township) |
| Sorento, IL (Village) |
| Sorkness, ND (Township) |
| Sorrento, LA (Town) |
| Sorrento, ME (Town) |
| Soso, MS (Town) |
| Souderton, PA (Borough) |
| Sour Lake, TX (City) |
| Souris, ND (City) |
| South, MO (Township) |
| South Abington Township, PA (Township) |
