About ZIP code 20689
The ZIP code 20689 routes mail to Sunderland 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
20689 - Sunderland
ZIP code 20689 is Sunderland in Maryland, United States.
| ZIP code | 20689 |
| Place | Sunderland |
| Region | Maryland |
| District | Calvert |
| Country | United States (US) |
| Coordinates | 38.649, -76.5767 (map) |