About ZIP code 18820
The ZIP code 18820 routes mail to Gibson in the Pennsylvania 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
18820 - Gibson
ZIP code 18820 is Gibson in Pennsylvania, United States.
| ZIP code | 18820 |
| Place | Gibson |
| Region | Pennsylvania |
| District | Susquehanna |
| Country | United States (US) |
| Coordinates | 41.8034, -75.6441 (map) |