Liste de la région
- L3M 1C3 - Grimsby, Niagara, Ontario
- L3M 1C4 - Grimsby, Niagara, Ontario
- L3M 1C5 - Grimsby, Niagara, Ontario
- L3M 1C6 - Grimsby, Niagara, Ontario
- L3M 1C7 - Grimsby, Niagara, Ontario
- L3M 1C8 - Grimsby, Niagara, Ontario
- L3M 1C9 - Grimsby, Niagara, Ontario
- L3M 1E1 - Grimsby, Niagara, Ontario
- L3M 1E2 - Grimsby, Niagara, Ontario
- L3M 1E3 - Grimsby, Niagara, Ontario
- L3M 1E4 - Grimsby, Niagara, Ontario
- L3M 1E5 - Grimsby, Niagara, Ontario
- L3M 1E6 - Grimsby, Niagara, Ontario
- L3M 1E7 - Grimsby, Niagara, Ontario
- L3M 1E8 - Grimsby, Niagara, Ontario
- L3M 1E9 - Grimsby, Niagara, Ontario
- L3M 1G1 - Grimsby, Niagara, Ontario
- L3M 1G2 - Grimsby, Niagara, Ontario
- L3M 1G3 - Grimsby, Niagara, Ontario
- L3M 1G4 - Grimsby, Niagara, Ontario