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UK postcodes
SM
SM1
SM1 3

SM1 3

SM1 postcode district

Updated September 2026

Sector overview

Postcode units: 271
Coordinate coverage: 100%

Part of the SM1 postcode district.

Postcode units

251–271 of 271 units

SM1 3WQ
SM1 3WT
SM1 3WU
SM1 3WX
SM1 3WY
SM1 3WZ
SM1 3YA
SM1 3ZB
SM1 3ZF
SM1 3ZG
SM1 3ZH
SM1 3ZJ
SM1 3ZL
SM1 3ZN
SM1 3ZP
SM1 3ZQ
SM1 3ZR
SM1 3ZS
SM1 3ZT
SM1 3ZU
SM1 3ZW

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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 4 228 current
SM1 1 108 current
SM1 9 44 current

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