Lista regionu
- L4A 1M8 - Stouffville, York, Ontario
- L4A 1M9 - Stouffville, York, Ontario
- L4A 1N1 - Stouffville, York, Ontario
- L4A 1N2 - Stouffville, York, Ontario
- L4A 1N3 - Stouffville, York, Ontario
- L4A 1N4 - Stouffville, York, Ontario
- L4A 1N5 - Stouffville, York, Ontario
- L4A 1N6 - Stouffville, York, Ontario
- L4A 1N7 - Stouffville, York, Ontario
- L4A 1N8 - Stouffville, York, Ontario
- L4A 1N9 - Stouffville, York, Ontario
- L4A 1P1 - Stouffville, York, Ontario
- L4A 1P2 - Stouffville, York, Ontario
- L4A 1P3 - Stouffville, York, Ontario
- L4A 1P4 - Stouffville, York, Ontario
- L4A 1P5 - Stouffville, York, Ontario
- L4A 1P6 - Stouffville, York, Ontario
- L4A 1P7 - Stouffville, York, Ontario
- L4A 1P8 - Stouffville, York, Ontario
- L4A 1P9 - Stouffville, York, Ontario