| Postal Code | Place Name | Region | Department | Arrondissement | Canton |
|---|---|---|---|---|---|
| 78570 | Andrésy | Île-de-France | Yvelines | Saint-Germain-en-Laye | Conflans-Sainte-Honorine |
| 78700 | Conflans-Sainte-Honorine | Île-de-France | Yvelines | Saint-Germain-en-Laye | Conflans-Sainte-Honorine |
| 78780 | Maurecourt | Île-de-France | Yvelines | Saint-Germain-en-Laye | Conflans-Sainte-Honorine |