Region List
- L3Y 8X8 - Newmarket, York, Ontario
- L3Y 8X9 - Newmarket, York, Ontario
- L3Y 8Y1 - Newmarket, York, Ontario
- L3Y 8Y2 - Newmarket, York, Ontario
- L3Y 8Y3 - Newmarket, York, Ontario
- L3Y 8Y4 - Newmarket, York, Ontario
- L3Y 8Y5 - Newmarket, York, Ontario
- L3Y 8Y6 - Newmarket, York, Ontario
- L3Y 8Y7 - Newmarket, York, Ontario
- L3Y 8Y8 - Newmarket, York, Ontario
- L3Y 8Y9 - Newmarket, York, Ontario
- L3Y 8Z1 - Newmarket, York, Ontario
- L3Y 8Z2 - Newmarket, York, Ontario
- L3Y 8Z3 - Newmarket, York, Ontario
- L3Y 8Z4 - Newmarket, York, Ontario
- L3Y 8Z5 - Newmarket, York, Ontario
- L3Y 8Z6 - Newmarket, York, Ontario
- L3Y 8Z7 - Newmarket, York, Ontario
- L3Y 8Z8 - Newmarket, York, Ontario
- L3Y 8Z9 - Newmarket, York, Ontario