Map
General Information
| Postal Area | County Durham |
| Postcode | DL1 1HN |
| User Type | Small (less than 25 items of mail per day) |
| Region | North East |
| Country | England |
| Local authority | Darlington |
| Introduction Date | 1985-10-01 |
| IMD 2025 | Decile 1 (most deprived = 1, least = 10) Rank 221 of 33,755 English Indices of Deprivation 2025 |
Geographic Information
| Latitude | 54.5237680 |
| Longitude | -1.5410390 |
| Easting | 429805 |
| Northing | 514371 |
| Quality | Within the building of the matched address closest to the postcode mean |