G9B 2M4 is Canadian Postal Code located in Trois-Rivières Quebec.
| Postal Code | G9B 2M4 |
| Forward Sortation Area | G9B |
| Name | Trois-Rivières |
| Province | Quebec |
| Administrative Division | Francheville Regional County Municipality |
| Timezone | Eastern Daylight Time (EDT) |
| Area Code(s) | 819 / 873 |