Lista de região
- K9H 3X1 - Peterborough, Peterborough, Ontario
- K9H 3X2 - Peterborough, Peterborough, Ontario
- K9H 3X3 - Peterborough, Peterborough, Ontario
- K9H 3X4 - Peterborough, Peterborough, Ontario
- K9H 3X5 - Peterborough, Peterborough, Ontario
- K9H 3X6 - Peterborough, Peterborough, Ontario
- K9H 3X7 - Peterborough, Peterborough, Ontario
- K9H 3X8 - Peterborough, Peterborough, Ontario
- K9H 3X9 - Peterborough, Peterborough, Ontario
- K9H 3Y1 - Peterborough, Peterborough, Ontario
- K9H 3Y2 - Peterborough, Peterborough, Ontario
- K9H 3Y3 - Peterborough, Peterborough, Ontario
- K9H 3Y4 - Peterborough, Peterborough, Ontario
- K9H 3Y5 - Peterborough, Peterborough, Ontario
- K9H 3Y6 - Peterborough, Peterborough, Ontario
- K9H 3Y7 - Peterborough, Peterborough, Ontario
- K9H 3Y8 - Peterborough, Peterborough, Ontario
- K9H 3Z1 - Peterborough, Peterborough, Ontario
- K9H 3Z2 - Peterborough, Peterborough, Ontario
- K9H 3Z3 - Peterborough, Peterborough, Ontario