| Day, NY (Town) |
| Day County, SD (County) |
| Day Town, WI (Town) |
| Day Township, MI (Township) |
| Daykin, NE (Village) |
| Dayton, KY (City) |
| Dayton, ME (Town) |
| Dayton, KS (Township) |
| Dayton, KS (Township) |
| Dayton, WY (Town) |
| Dayton, TX (City) |
| Dayton, OR (City) |
| Dayton, TN (City) |
| Dayton, IN (Town) |
| Dayton, ND (Township) |
