J3H 2T4 is Canadian Postal Code located in Mont-Saint-Hilaire Quebec.
| Postal Code | J3H 2T4 |
| Forward Sortation Area | J3H |
| Name | Mont-Saint-Hilaire |
| Province | Quebec |
| Administrative Division | La Vallée-du-Richelieu Regional County Municipality |
| Timezone | Eastern Daylight Time (EDT) |
| Area Code(s) | 450 / 579 |