| Postal Code Place Name | Treffiagat |
| Region | Bretagne |
| Department | Finistère |
| Arrondissement | Quimper |
| Canton | Pont-l'Abbé |
| Current Time: | CET |
| Time Zone: | Central European Time |
| IANA Time Zone: | Europe/Paris |
| Dialing Code: | 02 |
| 29120 Pont-l'Abbé |
| 29740 Plobannalec-Lesconil |
| 29760 Penmarch |