About postal code GY4
The postal code GY4 routes mail to St Martin of Guernsey. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
Guernsey ยท Postal code
GY4 - St Martin
Postal code GY4 is St Martin, Guernsey.
| Postal code | GY4 |
| Place | St Martin |
| District | Guernsey Channel Islands |
| Country | Guernsey (GG) |
| Coordinates | 49.45, -2.6 (map) |