Map
General Information
| Postal Area | Blackburn with Darwen |
| Postcode | BB1 3WY |
| User Type | Large (more than 25 items of mail per day) |
| Region | North West |
| Country | England |
| Local authority | Blackburn with Darwen |
| Introduction Date | 2004-02-01 |
| Termination Date | 2005-07-01 |
| IMD 2025 | Decile 1 (most deprived = 1, least = 10) Rank 908 of 33,755 English Indices of Deprivation 2025 |
Geographic Information
| Latitude | 53.7493210 |
| Longitude | -2.4410310 |
| Easting | 371014 |
| Northing | 428196 |
| Quality | Imputed by ONS, by reference to surrounding postcode grid references |