Список региона
- K9A 1M6 - Cobourg, Northumberland, Ontario
- K9A 1M7 - Cobourg, Northumberland, Ontario
- K9A 1M8 - Cobourg, Northumberland, Ontario
- K9A 1N1 - Cobourg, Northumberland, Ontario
- K9A 1N2 - Cobourg, Northumberland, Ontario
- K9A 1N3 - Cobourg, Northumberland, Ontario
- K9A 1N4 - Cobourg, Northumberland, Ontario
- K9A 1N5 - Cobourg, Northumberland, Ontario
- K9A 1N7 - Cobourg, Northumberland, Ontario
- K9A 1N8 - Cobourg, Northumberland, Ontario
- K9A 1N9 - Cobourg, Northumberland, Ontario
- K9A 1P1 - Cobourg, Northumberland, Ontario
- K9A 1P2 - Cobourg, Northumberland, Ontario
- K9A 1P3 - Cobourg, Northumberland, Ontario
- K9A 1P4 - Cobourg, Northumberland, Ontario
- K9A 1P5 - Cobourg, Northumberland, Ontario
- K9A 1P6 - Cobourg, Northumberland, Ontario
- K9A 1P7 - Cobourg, Northumberland, Ontario
- K9A 1P8 - Cobourg, Northumberland, Ontario
- K9A 1P9 - Cobourg, Northumberland, Ontario