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UK postcodes
SM
SM1
SM1 4

SM1 4

SM1 postcode district

Updated September 2026

Sector overview

Postcode units: 369
Coordinate coverage: 100%

Part of the SM1 postcode district.

Postcode units

351–369 of 369 units

SM1 4ZB
SM1 4ZD
SM1 4ZE
SM1 4ZF
SM1 4ZG
SM1 4ZH
SM1 4ZJ
SM1 4ZL
SM1 4ZN
SM1 4ZP
SM1 4ZQ
SM1 4ZR
SM1 4ZS
SM1 4ZT
SM1 4ZU
SM1 4ZW
SM1 4ZX
SM1 4ZY
SM1 4ZZ

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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 SM1 sectors

SM1 2 247 current
SM1 3 216 current
SM1 1 108 current
SM1 9 44 current

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