| Sedgwick, AR (Town) |
| Sedgwick, KS (City) |
| Sedgwick, KS (Township) |
| Sedgwick, CO (Town) |
| Sedgwick County, CO (County) |
| Sedgwick County, KS (County) |
| Sedona, AZ (City) |
| Sedro Woolley, WA (City) |
| Seekonk, MA (Town) |
| Seely, MN (Township) |
| Seely Township, IA (Township) |
| Seelyville, IN (Town) |
| Sefton Township, IL (Township) |
| Seguin, TX (City) |
| Seibert, CO (Town) |
