J2X 4N9 is Canadian Postal Code located in Saint-Jean-sur-Richelieu Quebec.
| Postal Code | J2X 4N9 |
| Forward Sortation Area | J2X |
| Name | Saint-Jean-sur-Richelieu |
| Province | Quebec |
| Administrative Division | Le Haut-Richelieu Regional County Municipality |
| Timezone | Eastern Daylight Time (EDT) |
| Area Code(s) | 450 / 579 |