| Postal Code | Place Name | Region | Department | Arrondissement | Canton |
|---|---|---|---|---|---|
| 78360 | Montesson | Île-de-France | Yvelines | Saint-Germain-en-Laye | Houilles |
| 78420 | Carrières-sur-Seine | Île-de-France | Yvelines | Saint-Germain-en-Laye | Houilles |
| 78800 | Houilles | Île-de-France | Yvelines | Saint-Germain-en-Laye | Houilles |