Bölge listesi
- L3T 3S1 - Thornhill, York, Ontario
- L3T 3S2 - Thornhill, York, Ontario
- L3T 3S3 - Thornhill, York, Ontario
- L3T 3S4 - Thornhill, York, Ontario
- L3T 3S5 - Thornhill, York, Ontario
- L3T 3T1 - Thornhill, York, Ontario
- L3T 3T2 - Thornhill, York, Ontario
- L3T 3T3 - Thornhill, York, Ontario
- L3T 3T4 - Thornhill, York, Ontario
- L3T 3T5 - Thornhill, York, Ontario
- L3T 3T6 - Thornhill, York, Ontario
- L3T 3T7 - Thornhill, York, Ontario
- L3T 3T8 - Thornhill, York, Ontario
- L3T 3T9 - Thornhill, York, Ontario
- L3T 3V1 - Thornhill, York, Ontario
- L3T 3V2 - Thornhill, York, Ontario
- L3T 3V3 - Thornhill, York, Ontario
- L3T 3V4 - Thornhill, York, Ontario
- L3T 3V5 - Thornhill, York, Ontario
- L3T 3V6 - Thornhill, York, Ontario