Regionlista
- L4P 1P2 - Keswick, York, Ontario
- L4P 1P3 - Keswick, York, Ontario
- L4P 1P4 - Keswick, York, Ontario
- L4P 1P5 - Keswick, York, Ontario
- L4P 1P6 - Keswick, York, Ontario
- L4P 1P7 - Keswick, York, Ontario
- L4P 1P8 - Keswick, York, Ontario
- L4P 1P9 - Keswick, York, Ontario
- L4P 1R1 - Keswick, York, Ontario
- L4P 1R2 - Keswick, York, Ontario
- L4P 1R3 - Keswick, York, Ontario
- L4P 1R4 - Keswick, York, Ontario
- L4P 1R5 - Keswick, York, Ontario
- L4P 1R6 - Keswick, York, Ontario
- L4P 1R7 - Keswick, York, Ontario
- L4P 1R8 - Keswick, York, Ontario
- L4P 1R9 - Keswick, York, Ontario
- L4P 1S1 - Keswick, York, Ontario
- L4P 1S2 - Keswick, York, Ontario
- L4P 1S3 - Keswick, York, Ontario