Map
General Information
| Postal Area | Blackburn with Darwen |
| Postcode | BB1 1GN |
| User Type | Large (more than 25 items of mail per day) |
| Region | North West |
| Country | England |
| Local authority | Blackburn with Darwen |
| Introduction Date | 1999-12-01 |
| Termination Date | 2001-07-01 |
| IMD 2025 | Decile 2 (most deprived = 1, least = 10) Rank 4,164 of 33,755 English Indices of Deprivation 2025 |
Geographic Information
| Latitude | 53.7442740 |
| Longitude | -2.4636910 |
| Easting | 369516 |
| Northing | 427644 |
| Quality | Postcode sector mean, (mainly PO Boxes) |