Regiunea lista
- L3Y 1S7 - Newmarket, York, Ontario
- L3Y 1S8 - Newmarket, York, Ontario
- L3Y 1S9 - Newmarket, York, Ontario
- L3Y 1T1 - Newmarket, York, Ontario
- L3Y 1T2 - Newmarket, York, Ontario
- L3Y 1T3 - Newmarket, York, Ontario
- L3Y 1T4 - Newmarket, York, Ontario
- L3Y 1T5 - Newmarket, York, Ontario
- L3Y 1T6 - Newmarket, York, Ontario
- L3Y 1T7 - Newmarket, York, Ontario
- L3Y 1T8 - Newmarket, York, Ontario
- L3Y 1T9 - Newmarket, York, Ontario
- L3Y 1V1 - Newmarket, York, Ontario
- L3Y 1V2 - Newmarket, York, Ontario
- L3Y 1V3 - Newmarket, York, Ontario
- L3Y 1V4 - Newmarket, York, Ontario
- L3Y 1V5 - Newmarket, York, Ontario
- L3Y 1V6 - Newmarket, York, Ontario
- L3Y 1V7 - Newmarket, York, Ontario
- L3Y 1V8 - Newmarket, York, Ontario