About ZIP code 21792
The ZIP code 21792 routes mail to Unionville in the Maryland region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States ยท ZIP code
21792 - Unionville
ZIP code 21792 is Unionville in Maryland, United States.
| ZIP code | 21792 |
| Place | Unionville |
| Region | Maryland |
| District | Frederick |
| Country | United States (US) |
| Coordinates | 39.4748, -77.1855 (map) |