About ZIP code 21056
The ZIP code 21056 routes mail to Gibson Island 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
21056 - Gibson Island
ZIP code 21056 is Gibson Island in Maryland, United States.
| ZIP code | 21056 |
| Place | Gibson Island |
| Region | Maryland |
| District | Anne Arundel |
| Country | United States (US) |
| Coordinates | 39.0751, -76.4324 (map) |