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LL20

UK postcode district

Updated September 2026

District overview

Postcode units
479
Current units
384
Coordinate coverage
99%
Electoral wards
6

Coverage context

Countries represented
Wales
English regions represented
W99999999
Local authority codes
2
Terminated postcode units
95

Postcode sectors in LL20

Choose a sector to browse its complete postcode-unit directory.

3 sectors

Property

Across this district

View property report
3,907 recorded sales at this postcode
Address Date Price
Bryn Dethol, Llanarmon Dyffryn Ceiriog, Llangollen, LL20 7LB 14 July 2026 £395,000
Lower Dee Mill, Apartment 301, Mill Street, Llangollen, LL20 8RQ 9 July 2026 £212,500
Treforydd, Maes Mawr Road, Garth, Llangollen, LL20 7YW 30 June 2026 £212,500

Schools

Across this district

View schools report
Open schools
7
Primary
0
Secondary
0

Recorded crime

Across this district

View crime report
Published events
563
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 221
  • Anti social behaviour 117
  • Criminal damage and arson 67
  • Other theft 39
  • Shoplifting 33

Census 2021

Population and age profile

LL20 usual residents
7,881
Age-profile population
8,088

Age bands in LL20

Postcode district
Age 0 to 14
13.3%

1,076 residents

Age 15 to 24
8.7%

705 residents

Age 25 to 44
19.3%

1,563 residents

Age 45 to 64
32.1%

2,594 residents

Age 65 and over
26.6%

2,150 residents

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

The median Ofcom availability percentage across 378 current postcode units in this district. Each postcode is weighted equally, not by premises.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
73%
Ultrafast, 300 Mbit/s+
71.4%
Gigabit-capable
71.4%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

293 postcode units had 100% superfast coverage, 142 had 100% gigabit-capable coverage, and 11 had at least some premises without decent fixed or fixed-wireless access.

Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

NHS ODS

GP practices

1

in this district

  • CANOLFAN IECHYD

    LLANGOLLEN HEALTH CENTRE, BISHOPS WALK, LLANGOLLEN, LL20 8RZ

    ODS code W91010

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £235,000 from 671 recorded sales in LL20. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Denbighshire is £198,995 in June 2026, up 3.6% year on year.

Schools

Published establishments

7 open schools are in scope, including 0 primary and 0 secondary schools.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

563 published events cover 12 months, averaging 46.917 events per published month. The largest recorded category is Violence and sexual offences with 221 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.