| Postal Code Place Name | Grigny |
| Region | Île-de-France |
| Department | Essonne |
| Arrondissement | Évry |
| Canton | Viry-Châtillon |
| Current Time: | CET |
| Time Zone: | Central European Time |
| IANA Time Zone: | Europe/Paris |
| Dialing Code: | 01 |
| 91130 Ris-Orangis |
| 91170 Viry-Châtillon |
| 91210 Draveil |
| 91700 Sainte-Geneviève-des-Bois |