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LL55 4HW

Llanberis · Gwynedd · Wales

Updated September 2026

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Location overview

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Post town
Caernarfon
Ward
Llanberis
Local authority
Gwynedd
Constituency
Dwyfor Meirionnydd
Postcode district
LL55
Postcode sector
LL55 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL55 4HL 19 m
LL55 4ET 42 m
LL55 4HN 52 m
LL55 4HG 70 m
LL55 4ES 78 m
Complete postcode fields and official codes
Postcode
LL55 4HW
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL55
Postcode sector
LL55 4
Latitude
53.121556
Longitude
-4.129422
British National Grid easting
257,598
British National Grid northing
360,382

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Electoral ward
Llanberis · W05001544
Parish or community
W04000069
Westminster constituency
Dwyfor Meirionnydd · W07000096
Output area
W00000417
Lower layer super output area
Gwynedd 005B · W01000081
Middle layer super output area
Gwynedd 005 · W02000014

Postcode source versions

Explore LL55

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
10 recorded sales at this postcode
Address Date Price
6, Thomas Street, Llanberis, Caernarfon, LL55 4HW 4 June 2021 £165,000
7, Thomas Street, Llanberis, Caernarfon, LL55 4HW 27 November 2020 £140,000
1, Thomas Street, Llanberis, Caernarfon, LL55 4HW 3 May 2019 £131,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
3
Primary
0
Secondary
0

  1. Ysgol Dolbadarn

    Welsh establishment

    421 m

  2. Ysgol Gwaun Gynfi

    Welsh establishment

    2.9 km

  3. Ysgol Gymuned Penisarwaun

    Welsh establishment

    4.1 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
142
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 50
  • Anti social behaviour 30
  • Public order 12
  • Shoplifting 11
  • Other theft 10

Census 2021

Population and age profile

Postcode residents
7

4 female, 3 male

Postcode households
4
Residents per household
1.8
LL55 4 residents
6,211

Age bands in LL55 4

Wider postcode sector
Age 0 to 14
16.3%

1,056 residents

Age 15 to 24
10.4%

674 residents

Age 25 to 44
23.7%

1,529 residents

Age 45 to 64
27.8%

1,796 residents

Age 65 and over
21.8%

1,410 residents

This postcode contained 0.1% of the sector's usual residents on Census Day. The age profile describes the wider LL55 4 sector, not people in this individual postcode.

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

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+
14.3%
Ultrafast, 300 Mbit/s+
14.3%
Gigabit-capable
14.3%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%
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

within 5 km

  • THE SURGERY

    LLANBERIS SURGERY, HIGH STREET, LLANBERIS, CAERNARFON, LL55 4SU

    ODS code W94017

    436 m

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.

Nearby transport

  • HSBC

    BCT · Llanberis

    0.1 miles

  • Joe Brown

    BCT · Llanberis

    0.1 miles

  • Joe Brown

    BCT · Llanberis

    0.1 miles

  • Coed-y-Glyn

    BCT · Llanberis

    0.2 miles

  • Dolbadarn Hotel

    BCT · Llanberis

    0.3 miles

Evidence in context

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

Schools

Published establishments

3 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Dolbadarn is the nearest published school at 421 m.

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

Recorded crime

Published police records

142 published events cover 12 months, averaging 11.833 events per published month. The largest recorded category is Violence and sexual offences with 50 events.

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