Regiunea lista
- L3T 1P8 - Thornhill, York, Ontario
- L3T 1P9 - Thornhill, York, Ontario
- L3T 1R1 - Thornhill, York, Ontario
- L3T 1R2 - Thornhill, York, Ontario
- L3T 1R3 - Thornhill, York, Ontario
- L3T 1R4 - Thornhill, York, Ontario
- L3T 1R5 - Thornhill, York, Ontario
- L3T 1R6 - Thornhill, York, Ontario
- L3T 1R7 - Thornhill, York, Ontario
- L3T 1R8 - Thornhill, York, Ontario
- L3T 1R9 - Thornhill, York, Ontario
- L3T 1S1 - Thornhill, York, Ontario
- L3T 1S2 - Thornhill, York, Ontario
- L3T 1S3 - Thornhill, York, Ontario
- L3T 1S4 - Thornhill, York, Ontario
- L3T 1S5 - Thornhill, York, Ontario
- L3T 1S6 - Thornhill, York, Ontario
- L3T 1S7 - Thornhill, York, Ontario
- L3T 1S8 - Thornhill, York, Ontario
- L3T 1S9 - Thornhill, York, Ontario