About postal code 78420
The postal code 78420 routes mail to Carrières-sur-Seine in the Île-de-France region of France. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
France · Postal code
78420 - Carrières-sur-Seine
Postal code 78420 is Carrières-sur-Seine in Île-de-France, France.
| Postal code | 78420 |
| Place | Carrières-sur-Seine |
| Region | Île-de-France |
| District | Yvelines |
| Country | France (FR) |
| Coordinates | 48.9069, 2.1792 (map) |