Regiunea lista
- L4A 4J1 - Stouffville, York, Ontario
- L4A 4J2 - Stouffville, York, Ontario
- L4A 4J3 - Stouffville, York, Ontario
- L4A 4J4 - Stouffville, York, Ontario
- L4A 4J5 - Stouffville, York, Ontario
- L4A 4J6 - Stouffville, York, Ontario
- L4A 4J7 - Stouffville, York, Ontario
- L4A 4J8 - Stouffville, York, Ontario
- L4A 4K1 - Stouffville, York, Ontario
- L4A 4K2 - Stouffville, York, Ontario
- L4A 4K4 - Stouffville, York, Ontario
- L4A 4K5 - Stouffville, York, Ontario
- L4A 4K6 - Stouffville, York, Ontario
- L4A 4R8 - Stouffville, York, Ontario
- L4A 4R9 - Stouffville, York, Ontario
- L4A 4S1 - Stouffville, York, Ontario
- L4A 4S2 - Stouffville, York, Ontario
- L4A 4S3 - Stouffville, York, Ontario
- L4A 4S4 - Stouffville, York, Ontario
- L4A 4S5 - Stouffville, York, Ontario