Lista regionu
- L4A 1K6 - Stouffville, York, Ontario
- L4A 1K7 - Stouffville, York, Ontario
- L4A 1K8 - Stouffville, York, Ontario
- L4A 1K9 - Stouffville, York, Ontario
- L4A 1L1 - Stouffville, York, Ontario
- L4A 1L2 - Stouffville, York, Ontario
- L4A 1L3 - Stouffville, York, Ontario
- L4A 1L4 - Stouffville, York, Ontario
- L4A 1L5 - Stouffville, York, Ontario
- L4A 1L6 - Stouffville, York, Ontario
- L4A 1L7 - Stouffville, York, Ontario
- L4A 1L8 - Stouffville, York, Ontario
- L4A 1L9 - Stouffville, York, Ontario
- L4A 1M1 - Stouffville, York, Ontario
- L4A 1M2 - Stouffville, York, Ontario
- L4A 1M3 - Stouffville, York, Ontario
- L4A 1M4 - Stouffville, York, Ontario
- L4A 1M5 - Stouffville, York, Ontario
- L4A 1M6 - Stouffville, York, Ontario
- L4A 1M7 - Stouffville, York, Ontario