Post Offices List in Mason County, Kentucky:
| Dover Post Office | 2047 Market St, Dover, KY 41034 |
| Maysville Post Office | 131 E 3rd St, Maysville, KY 41056 |
| Washington Post Office | 2200 Old Main St, Washington, KY 41096 |
| Mayslick Post Office | 5014 Main St, Mayslick, KY 41055 |