Lista de região
- L3X 2K7 - Newmarket, York, Ontario
- L3X 2K8 - Newmarket, York, Ontario
- L3X 2K9 - Newmarket, York, Ontario
- L3X 2L1 - Newmarket, York, Ontario
- L3X 2L2 - Newmarket, York, Ontario
- L3X 2L3 - Newmarket, York, Ontario
- L3X 2L4 - Newmarket, York, Ontario
- L3X 2L5 - Newmarket, York, Ontario
- L3X 2L6 - Newmarket, York, Ontario
- L3X 2L7 - Newmarket, York, Ontario
- L3X 2L8 - Newmarket, York, Ontario
- L3X 2L9 - Newmarket, York, Ontario
- L3X 2M1 - Newmarket, York, Ontario
- L3X 2M2 - Newmarket, York, Ontario
- L3X 2M3 - Newmarket, York, Ontario
- L3X 2M4 - Newmarket, York, Ontario
- L3X 2M5 - Newmarket, York, Ontario
- L3X 2M6 - Newmarket, York, Ontario
- L3X 2M7 - Newmarket, York, Ontario
- L3X 2M8 - Newmarket, York, Ontario