| Sewickley Township, PA (Township) |
| Seymour, WI (City) |
| Seymour, IA (City) |
| Seymour, IN (City) |
| Seymour, MO (City) |
| Seymour, CT (Town) |
| Seymour, TX (City) |
| Seymour Town, WI (Town) |
| Seymour Town, WI (Town) |
| Seymour Town, WI (Town) |
| Shabbona, IL (Village) |
| Shabbona Township, IL (Township) |
| Shackelford County, TX (County) |
| Shade Gap, PA (Borough) |
| Shade Township, PA (Township) |
