About postal code 78400
The postal code 78400 routes mail to Chatou 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
78400 - Chatou
Postal code 78400 is Chatou in Île-de-France, France.
| Postal code | 78400 |
| Place | Chatou |
| Region | Île-de-France |
| District | Yvelines |
| Country | France (FR) |
| Coordinates | 48.8898, 2.1586 (map) |