Map
General Information
| Postal Area | Blackburn with Darwen |
| Postcode | BB1 4AX |
| User Type | Small (less than 25 items of mail per day) |
| Region | North West |
| Country | England |
| Local authority | Ribble Valley |
| Introduction Date | 1980-01-01 |
| Termination Date | 2010-12-01 |
Geographic Information
| Latitude | 53.7839950 |
| Longitude | -2.4606540 |
| Easting | 369745 |
| Northing | 432062 |
| Quality | Within the building of the matched address closest to the postcode mean |