| Place | Post Code |
|---|---|
| Brownsburg-Chatham, Argenteuil | J8G |
| Gore, Argenteuil | J0V 1K0 |
| Grenville, Argenteuil | J0V |
| Grenville-sur-la-Rouge, Argenteuil | J0V |
| Harrington, Argenteuil | J0T, J8G |
| Lachute, Argenteuil | J8H |
| Mille-Isles, Argenteuil | J0R |
| Saint-André-d'Argenteuil, Argenteuil | J0V |
| Wentworth, Argenteuil | J0T, J8H |