Danh sách vùng
- L4P 2H7 - Keswick, York, Ontario
- L4P 2H8 - Keswick, York, Ontario
- L4P 2H9 - Keswick, York, Ontario
- L4P 2J1 - Keswick, York, Ontario
- L4P 2J2 - Keswick, York, Ontario
- L4P 2J3 - Keswick, York, Ontario
- L4P 2J4 - Keswick, York, Ontario
- L4P 2J5 - Keswick, York, Ontario
- L4P 2J6 - Keswick, York, Ontario
- L4P 2J7 - Keswick, York, Ontario
- L4P 2J8 - Keswick, York, Ontario
- L4P 2J9 - Keswick, York, Ontario
- L4P 2K1 - Keswick, York, Ontario
- L4P 2K2 - Keswick, York, Ontario
- L4P 2K3 - Keswick, York, Ontario
- L4P 2K4 - Keswick, York, Ontario
- L4P 2K5 - Keswick, York, Ontario
- L4P 2K6 - Keswick, York, Ontario
- L4P 2K7 - Keswick, York, Ontario
- L4P 2K8 - Keswick, York, Ontario