| Postal Code | Place Name | Region | Department | Arrondissement | Canton |
|---|---|---|---|---|---|
| 42000 | Saint-Étienne | Auvergne-Rhône-Alpes | Loire | Saint-Étienne | Saint-Étienne |
| 42100 | Saint-Étienne | Auvergne-Rhône-Alpes | Loire | Saint-Étienne | Saint-Étienne |
| 42230 | Roche-la-Molière | Auvergne-Rhône-Alpes | Loire | Saint-Étienne | Saint-Étienne |