CH42 postcode district

Postcodes and sectors

688 of the district's 814 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 53.37379, -3.02246, which locates the district, not a building.

Companies registered in CH42

Companies House lists 858 companies with a registered office in CH42; 98 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for CH42

• Wirral
• North West
• Birkenhead
• Bebington

Roads filed under CH42

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Acrefield Road
• Acton Road
• Acuba Grove
• Adelaide Road
• Agnes Road
• Albany Close
• Albany Court
• Albany Road
• Albert Road
• Aldersgate
• Alexandra Drive
• Alison Avenue
• Allcot Avenue
• Allerton Grove
• Allerton Road
• Alpha Drive
• Amery Grove
• Archway Close
• Ashley Street
• Ash Road
• Aspendale Road
• Astonwood Road
• Autumn Grove
• Bank Dene
• Bankside Road
• Bankville Road
• Baytree Road
• Beaconsfield Close
• Bebington Road
• Bedford Avenue
• Bedford Drive
• Bedford Place
• Bedford Road
• Bedford Road East
• Beech Road
• Ben Nevis Road
• Birkett Road
• Borough Road
• Brecon Road
• Briardale Road
• Briarswood Close
• Brougham Avenue
• Browning Avenue
• Bryanston Road
• Bryony Way
• Bulwer Street
• Burrell Close
• Burrell Road
• Buxton Road
• Byrne Avenue
• Caerwys Grove
• Cambridge Road
• Canterbury Road
• Cargill Grove
• Carlton Road
• Cavendish Drive
• Cecil Road
• Chalkley Close
• Charlecombe Street
• Chatham Road

Check an address in CH42

Check an address in CH42

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CH42" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CH42

What does a CH42 postcode tell you?

That the address lies in the CH42 district of the CH (Chester) postcode area, and the place OS Open Names most often lists first for its postcodes is Birkenhead. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 688 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest CH42

• CH412.4 km
• CH252.7 km
• CH432.7 km
• L743.1 km
• CH633.3 km
• L693.5 km
• L14.2 km
• L24.3 km
• L84.3 km
• L34.6 km
• CH444.7 km
• CH625.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids