Blackburn (BB) Postcode Districts

Area/District	Active Postcodes
BB0	1
BB1	1,910
BB10	1,131
BB11	1,428
BB12	1,214
BB18	667
BB2	2,084
BB3	1,182
BB4	1,803
BB5	2,083
BB6	700
BB7	1,432
BB8	1,517
BB9	1,843
BB94	21