LL20 postcode district: Llangollen and around

LL20 is a postcode district in Wales, with 384 postcodes in use in 3 sectors. It has postcodes in Llangollen and Glyn Ceiriog. It is split between 2 councils: Denbighshire (200 postcodes) and Wrexham (184).

Postcodes in use: 384
Sectors: 3
Councils: 2 councils
Places: 2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in LL20, and which are new since 2020

New since 2020: 8
In use before 2020: 376
Outline: where 5 or more new postcodes since 2020 lie together

Of the 384 postcodes in LL20 that ONS places, 8 are new since 2020 and 376 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 160 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 52.9589, longitude -3.1607. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

LL20 9BGJanuary 2026 LL20 9BRMay 2025 LL20 9BQFebruary 2025 LL20 9BPJanuary 2025 LL20 9BASeptember 2021

Where the new postcodes lie together

6 new postcodes since 2020, outlined on the map. LL20 9BG, is the newest of them.

What broadband can you get in LL20?

Ofcom reports on 378 of the 384 postcodes in LL20. At 142 of them every home and business can get gigabit broadband, and at 11 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit142 of 378

Postcodes where every home can get superfast293 of 378

Postcodes where some cannot get decent broadband11 of 378

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

What do homes sell for in LL20?

Homes in LL20 sold for a typical £250,000 in the 12 months to August 2026, across 88 sales, up 13.6% on the 12 months before, HM Land Registry's figures show.

£250,000 typical price, the 12 months to August 2026

£220,000 12 months to August 2025

▲ up 13.6% on the 12 months before

Detached £332,500 44 sales
Semi-detached £193,000 19 sales
Terraced £190,000 18 sales
Flat or maisonette £235,000 7 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it