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UK postcodes
BL
BL1
BL1 4

BL1 4

BL1 postcode district

Updated September 2026

Sector overview

Postcode units: 317
Coordinate coverage: 100%

Part of the BL1 postcode district.

Postcode units

301–317 of 317 units

BL1 4WP
BL1 4WQ
BL1 4WR
BL1 4WS
BL1 4WT
BL1 4WU
BL1 4WW
BL1 4WX
BL1 4WY
BL1 4WZ
BL1 4XA
BL1 4YT
BL1 4YU
BL1 4YW
BL1 4YX
BL1 4YY
BL1 4ZR

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Map centre

Centred on the average coordinates of published units. This is not a sector boundary.

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Other BL1 sectors

BL1 5 305 current
BL1 8 282 current
BL1 3 270 current
BL1 6 210 current
BL1 7 210 current
BL1 2 201 current
BL1 1 119 current
BL1 9 47 current

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