| Saginaw Township, MI (Township) |
| Sago, MN (Township) |
| Sagola Township, MI (Township) |
| Saguache, CO (Town) |
| Saguache County, CO (County) |
| Sahuarita, AZ (Town) |
| Sail Harbour Community Development District, FL (CDD) |
| Sailor Springs, IL (Village) |
| Saint Agatha, ME (Town) |
| Saint Ansgar Township, IA (Township) |
| Saint Bernard, OH (Village) |
| Saint Charles Township, IA (Township) |
| Saint Clair Township, IA (Township) |
| Saint Clair Township, IA (Township) |
| Saint Clairsville, OH (City) |
