LL54 6DE

Llanllyfni · Gwynedd · Wales

Updated September 2026

Compare this postcode

Location overview

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Local authority
Gwynedd
Constituency
Dwyfor Meirionnydd
Postcode district
LL54
Postcode sector
LL54 6

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL54 6DD 107 m
LL54 6DJ 114 m
LL54 6DF 136 m
LL54 6AZ 146 m
LL54 6SL 299 m
Complete postcode fields and official codes
Postcode
LL54 6DE
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL54
Postcode sector
LL54 6
Latitude
53.045491
Longitude
-4.280889
British National Grid easting
247,194
British National Grid northing
352,234

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Parish or community
W04000083
Westminster constituency
Dwyfor Meirionnydd · W07000096
Output area
W00000437
Lower layer super output area
Gwynedd 008B · W01000086
Middle layer super output area
Gwynedd 008 · W02000017

Postcode source versions

Explore LL54

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
7
Primary
0
Secondary
0
  1. Ysgol Gynradd Llanllyfni

    Welsh establishment

    491 m
  2. Ysgol Dyffryn Nantlle

    Welsh establishment

    997 m
  3. Ysgol Bro Lleu

    Welsh establishment

    1.0 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
241
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 120
  • Anti social behaviour 47
  • Criminal damage and arson 36
  • Public order 12
  • Other theft 8

Census 2021

Population and age profile

Postcode residents
96

56 female, 40 male

Postcode households
39
Residents per household
2.5
LL54 6 residents
4,195

Age bands in LL54 6

Wider postcode sector
Age 0 to 14
18.7%

765 residents

Age 15 to 24
10.7%

437 residents

Age 25 to 44
21.7%

890 residents

Age 45 to 64
27.5%

1,127 residents

Age 65 and over
21.4%

878 residents

This postcode contained 2.3% of the sector's usual residents on Census Day. The age profile describes the wider LL54 6 sector, not people in this individual postcode.

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

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

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

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

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

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

GP practices

1

within 5 km

  • CORWEN HOUSE

    MARKET PLACE, PENYGROES, CAERNARFON, LL54 6NN

    ODS code W94609

    912 m

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

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

Nearby transport

  • Felin Gerrig

    BCT · Llanllyfni

    0.0 miles
  • Felin Gerrig

    BCT · Llanllyfni

    0.1 miles
  • Quarrymen`s Arms

    BCT · Llanllyfni

    0.2 miles
  • Quarrymen`s Arms

    BCT · Llanllyfni

    0.2 miles
  • Stad Ddiwydiannol

    BCT · Penygroes

    0.3 miles

Evidence in context

Schools

7 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gynradd Llanllyfni is the nearest published school at 491 m.

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

Recorded crime

241 published events cover 12 months, averaging 20.083 events per published month. The largest recorded category is Violence and sexual offences with 120 events.

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