LL55 4SG

Llanberis · Gwynedd · Wales

Updated September 2026

Compare this postcode

Location overview

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Local authority
Gwynedd
Constituency
Dwyfor Meirionnydd
Postcode district
LL55
Postcode sector
LL55 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL54 7YS 2.8 km
LL55 4UL 2.8 km
LL55 4UG 3.0 km
LL55 4UF 3.0 km
LL55 4SS 3.0 km
Complete postcode fields and official codes
Postcode
LL55 4SG
Status
Terminated
Introduced
1 April 1986
Terminated
1 December 1990
Postcode area
LL
Postcode district
LL55
Postcode sector
LL55 4
Latitude
53.079104
Longitude
-4.098928
British National Grid easting
259,500
British National Grid northing
355,600

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
W00000413
Lower layer super output area
Gwynedd 005B · W01000081
Middle layer super output area
Gwynedd 005 · W02000014

Postcode source versions

Explore LL55

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
1
Primary
0
Secondary
0
  1. Ysgol Dolbadarn

    Welsh establishment

    4.7 km

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
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

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.

GP practices

1

within 5 km straight-line

  • THE SURGERY

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

    ODS code W94017

    4.7 km

Nearby transport

  • Summit (Snowdon Mountain Railway)

    MET · Llanberis

    1.2 miles
  • Cae Perthi

    BCT · Gwastadnant

    1.7 miles
  • Cae Perthi

    BCT · Gwastadnant

    1.7 miles
  • Maes Parcio Car Park

    BCT · Llanberis

    1.8 miles
  • St Peris` Church

    BCT · Llanberis

    1.9 miles

Evidence in context

Schools

1 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Dolbadarn is the nearest published school at 2.9 miles.

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