CH66 postcode district

Postcodes and sectors

997 of the district's 1,095 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 53.27760, -2.93734, which locates the district, not a building.

Companies registered in CH66

Companies House lists 987 companies with a registered office in CH66; 150 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 CH66

• Cheshire West and Chester
• North West
• Ellesmere Port
• Hooton
• Childer Thornton
• Ledsham

Roads filed under CH66

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.

• Acacia Drive
• Acre Road
• Adam Avenue
• Adam Close
• Aintree Grove
• Airfield Way
• Albany Gardens
• Alder Drive
• Almond Way
• Alvanley Road
• Alvanley Way
• Ann Close
• Antrim Drive
• Appledale Drive
• Apple Tree Grove
• Archers Way
• Arkwright Place
• Armthorpe Drive
• Ascot Drive
• Ashbourne Close
• Ash Close
• Ash Grove
• Ashwood Close
• Askrigg Avenue
• Aspen Close
• Atlas Way
• Auckery Avenue
• Aylesbury Close
• Badgers Close
• Badgers Rake Lane
• Baildon Green
• Baker Drive
• Bakewell Close
• Bangor Close
• Barley Mow Close
• Barnfield Close
• Barnwood
• Barrel Court
• Baytree Close
• Bayweaver Street
• Beamer Court
• Beasley Close
• Bebington Road
• Beech Grove
• Beechwood Drive
• Beeston Green
• Ben Nevis Drive
• Berry Close
• Berry Drive
• Berwick Gardens
• Berwick Grove
• Berwick Road
• Berwyn Close
• Beverley Way
• Bidston Green
• Birch Grove
• Birchwood Close
• Bitterling Street
• Blackboards Lane
• Blackdown Close

Check an address in CH66

Check an address in CH66

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=CH66" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about CH66

What does a CH66 postcode tell you?

That the address lies in the CH66 district of the CH (Chester) postcode area, and the place OS Open Names most often lists first for its postcodes is Ellesmere Port. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 997 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 CH66

• CH652.3 km
• CH626.9 km
• CH647.4 km
• CH28.0 km
• CH18.5 km
• CH638.9 km
• L199.3 km
• CH709.5 km
• L249.8 km
• CH8810.1 km
• CH510.7 km
• L1711.1 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids