About ZIP code 21661
The ZIP code 21661 routes mail to Rock Hall 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
21661 - Rock Hall
ZIP code 21661 is Rock Hall in Maryland, United States.
| ZIP code | 21661 |
| Place | Rock Hall |
| Region | Maryland |
| District | Kent |
| Country | United States (US) |
| Coordinates | 39.1344, -76.2305 (map) |