| Place | Post Code |
|---|---|
| Granby, La Haute-Yamaska | J2G, J2H, J2J |
| Roxton Pond, La Haute-Yamaska | J0E |
| Saint-Alphonse-de-Granby, La Haute-Yamaska | J0E, J2K |
| Saint-Joachim-de-Shefford, La Haute-Yamaska | J0E 2G0 |
| Sainte-Cécile-de-Milton, La Haute-Yamaska | J0E |
| Shefford, La Haute-Yamaska | J2M |
| Warden, La Haute-Yamaska | J0E 2M0 |
| Waterloo, La Haute-Yamaska | J0E |