J4 — 17 códigos em 17 localidades (Canadá).
| Código postal | Localidade / Distrito | Região / Município | Coordenadas |
|---|---|---|---|
| Boucherville | Boucherville · Montérégie | 45.591, -73.4361 | |
| Longueuil North | Longueuil · Quebec | 45.5679, -73.4761 | |
| Longueuil West | Longueuil · Quebec | 45.5372, -73.5056 | |
| Longueuil Central | Longueuil · Quebec | 45.5362, -73.4721 | |
| Longueuil Southwest | Longueuil · Quebec | 45.5183, -73.5023 | |
| Longueuil Southeast | Longueuil · Quebec | 45.5181, -73.4576 | |
| Longueuil East | Longueuil · Quebec | 45.5418, -73.4382 | |
| Longueuil Northeast | Longueuil · Quebec | 45.5523, -73.4558 | |
| Saint-Lambert North | Saint-Lambert · Montérégie | 45.5073, -73.5082 | |
| Saint-Lambert Central | Saint-Lambert · Montérégie | 45.4924, -73.5009 | |
| Saint-Lambert South | Saint-Lambert · Montérégie | 45.481, -73.497 | |
| Saint-Hubert West | Quebec | 45.4973, -73.4676 | |
| Greenfield Park | Quebec | 45.4865, -73.4622 | |
| Brossard Northwest | Brossard · Montérégie | 45.4674, -73.4832 | |
| Brossard Southwest | Brossard · Montérégie | 45.4455, -73.4841 | |
| Brossard South | Brossard · Montérégie | 45.4414, -73.4561 | |
| Brossard Northeast | Brossard · Montérégie | 45.4424, -73.4231 |