| Silas, AL (Town) |
| Siler City, NC (Town) |
| Silerton, TN (Town) |
| Siletz, OR (City) |
| Silex, MO (Village) |
| Silo, OK (Town) |
| Siloam, GA (Town) |
| Siloam Springs, AR (City) |
| Silsbee, TX (City) |
| Silt, CO (Town) |
| Silver, MN (Township) |
| Silver Bay, MN (City) |
| Silver Bow County, MT (County) |
| Silver Brook, MN (Township) |
| Silver City, IA (City) |
