| Alto Pass, IL (Village) |
| Alto Township, IL (Township) |
| Alton, IL (City) |
| Alton, IA (City) |
| Alton, MN (Township) |
| Alton, IN (Town) |
| Alton, UT (Town) |
| Alton, TX (City) |
| Alton, NH (Town) |
| Alton, KS (City) |
| Alton, MO (City) |
| Alton, ME (Town) |
| Alton, SD (Township) |
| Alton Township, IL (Township) |
| Altona, MN (Township) |
