| Jacksonville, VT (Village) |
| Jacksonville, GA (City) |
| Jacksonville, MO (Village) |
| Jacksonville, OR (City) |
| Jacksonville Beach , FL (City) |
| Jacksonville Township, IA (Township) |
| Jacob City , FL (City) |
| Jacobs Town, WI (Town) |
| Jacobus, PA (Borough) |
| Jadis, MN (Township) |
| Jaffrey, NH (Town) |
| Jakin, GA (City) |
| Jal, NM (City) |
| Jamaica, VT (Town) |
| Jamaica, IA (City) |
