LL11 postcode district

Postcodes and sectors

1,297 of the district's 1,878 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 53.06359, -3.03642, which locates the district, not a building.

Companies registered in LL11

Companies House lists 1,533 companies with a registered office in LL11; 454 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 LL11

• Wales
• Wrexham
• Wrecsam
• Gwersyllt
• Brynteg
• Coedpoeth
• Brymbo
• New Broughton
• Sir y Fflint
• Flintshire
• Tanyfron
• Bradley
• Sir Ddinbych
• Denbighshire
• Bwlchgwyn
• Minera
• Old Rhosrobin
• Cymau
• Southsea
• Ffrith
• Gwynfryn
• Pandy
• Highfield
• Llandegla

Roads filed under LL11

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.

• Aarons Road
• Abbot Street
• Acton Gate
• Acton Road
• Adwy Lane
• Ael-y-Bryn
• Albert's Avenue
• Alder Close
• Allt Eisteddfod
• Allt y Pentref
• Alyn Close
• Alyn Way
• Arcade Central
• Arenig Close
• Arfryn
• Argoed
• Argyle Street
• Ashbourne Avenue
• Ash Close
• Ashfield Court
• Ashfield Road
• Assembly Road
• Bakery Fields
• Balmoral Close
• Balmoral Road
• Bank Street
• Barretts Hill
• Beacon Road
• Beech Avenue
• Beech Street
• Belvedere Drive
• Bennett's Road
• Bently Avenue
• Berse Gardens
• Berse Road
• Bersham Road
• Bickerton Drive
• Birch Tree Close
• Blacklane Road
• Blast Road
• Bloom Avenue
• Bottom Road
• Bracken Court
• Brake Road
• Briarswood
• Bridge Street
• Bro Deg
• Bron Yfelin
• Broughton Heights
• Broughton Road
• Brunel Court
• Brunswick Court
• Brymbo Road
• Bryn-a-Glyn
• Bryn-y-Ffynnon
• Bryn-Yorkin Road
• Bryn-yr-Onnen
• Bryn Awel
• Bryn Bach
• Bryn Celyn

Check an address in LL11

Check an address in LL11

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=LL11" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about LL11

What does an LL11 postcode tell you?

That the address lies in the LL11 district of the LL (Llandudno) postcode area, and the place OS Open Names most often lists first for its postcodes is Wrexham. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,297 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 LL11

• LL124.2 km
• LL136.1 km
• LL148.1 km
• CH412.8 km
• CH713.5 km
• LL2014.3 km
• CH515.7 km
• CH7016.2 km
• CH117.6 km
• CH8818.1 km
• SY1418.3 km
• CH318.3 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids