Lista regionu
- L4A 5S1 - Stouffville, York, Ontario
- L4A 5S2 - Stouffville, York, Ontario
- L4A 5S3 - Stouffville, York, Ontario
- L4A 5S4 - Stouffville, York, Ontario
- L4A 5S6 - Stouffville, York, Ontario
- L4A 5S7 - Stouffville, York, Ontario
- L4A 5S8 - Stouffville, York, Ontario
- L4A 5Y9 - Stouffville, York, Ontario
- L4A 5Z1 - Stouffville, York, Ontario
- L4A 5Z2 - Stouffville, York, Ontario
- L4A 5Z3 - Stouffville, York, Ontario
- L4A 5Z4 - Stouffville, York, Ontario
- L4A 5Z5 - Stouffville, York, Ontario
- L4A 5Z6 - Stouffville, York, Ontario
- L4A 5Z7 - Stouffville, York, Ontario
- L4A 5Z8 - Stouffville, York, Ontario
- L4A 5Z9 - Stouffville, York, Ontario
- L4A 6A1 - Stouffville, York, Ontario
- L4A 6A2 - Stouffville, York, Ontario
- L4A 6A3 - Stouffville, York, Ontario