Seznam oblastí
- L3T 1A6 - Thornhill, York, Ontario
- L3T 1A7 - Thornhill, York, Ontario
- L3T 1A8 - Thornhill, York, Ontario
- L3T 1A9 - Thornhill, York, Ontario
- L3T 1B1 - Thornhill, York, Ontario
- L3T 1B2 - Thornhill, York, Ontario
- L3T 1B3 - Thornhill, York, Ontario
- L3T 1B4 - Thornhill, York, Ontario
- L3T 1B5 - Thornhill, York, Ontario
- L3T 1B6 - Thornhill, York, Ontario
- L3T 1B7 - Thornhill, York, Ontario
- L3T 1B8 - Thornhill, York, Ontario
- L3T 1B9 - Thornhill, York, Ontario
- L3T 1C1 - Thornhill, York, Ontario
- L3T 1C2 - Thornhill, York, Ontario
- L3T 1C3 - Thornhill, York, Ontario
- L3T 1C4 - Thornhill, York, Ontario
- L3T 1C5 - Thornhill, York, Ontario
- L3T 1C6 - Thornhill, York, Ontario
- L3T 1C7 - Thornhill, York, Ontario