| Postal Code | Place Name | Region | Department | Arrondissement | Canton |
|---|---|---|---|---|---|
| 78260 | Achères | Île-de-France | Yvelines | Saint-Germain-en-Laye | Poissy |
| 78300 | Poissy | Île-de-France | Yvelines | Saint-Germain-en-Laye | Poissy |
| 78955 | Carrières-sous-Poissy | Île-de-France | Yvelines | Saint-Germain-en-Laye | Poissy |