J3 — 15 codes dans 15 localités (Canada).
| Code postal | Localité / Quartier | Zone administrative | Coordonnées |
|---|---|---|---|
| Saint-Jean-sur-Richelieu North | Saint-Jean-sur-Richelieu · Montérégie | 45.3339, -73.2744 | |
| Saint-Jean-sur-Richelieu Central | Saint-Jean-sur-Richelieu · Montérégie | 45.2832, -73.2792 | |
| Sainte-Julie | Sainte-Julie · Montérégie | 45.5834, -73.3325 | |
| Beloeil West | Beloeil · Montérégie | 45.5946, -73.2283 | |
| Beloeil East | Quebec | 45.5527, -73.1755 | |
| Chambly | Chambly · Montérégie | 45.4501, -73.2825 | |
| Marieville | Marieville · Montérégie | 45.4334, -73.1659 | |
| Saint-Basile-Le-Grand | Quebec | 45.5334, -73.2825 | |
| Sorel Central | Sorel · Quebec | 46.0365, -73.0665 | |
| Sorel Southwest | Sorel · Quebec | 46.0206, -73.1439 | |
| Nicolet | Nicolet · Centre-du-Québec | 46.2168, -72.6158 | |
| Saint-Bruno | Quebec | 45.532, -73.3437 | |
| Varennes | Varennes · Montérégie | 45.6834, -73.4325 | |
| Saint-Hubert Central | Saint-Hubert · Quebec | 45.4906, -73.3991 | |
| Saint-Hubert East | Saint-Hubert · Quebec | 45.4981, -73.4012 |