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UK postcodes
CH
CH1
CH1 4

CH1 4

CH1 postcode district

Updated September 2026

Sector overview

Postcode units: 273
Coordinate coverage: 100%

Part of the CH1 postcode district.

Postcode units

251–273 of 273 units

CH1 4YB
CH1 4YD
CH1 4YE
CH1 4YF
CH1 4YH
CH1 4YR
CH1 4YS
CH1 4YT
CH1 4YU
CH1 4ZA
CH1 4ZB
CH1 4ZD
CH1 4ZE
CH1 4ZF
CH1 4ZG
CH1 4ZH
CH1 4ZJ
CH1 4ZL
CH1 4ZN
CH1 4ZP
CH1 4ZQ
CH1 4ZS
CH1 4ZY

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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 CH1 sectors

CH1 5 269 current
CH1 6 176 current
CH1 9 132 current
CH1 3 124 current
CH1 1 92 current
CH1 2 88 current

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