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LL57 4YT

Tre-garth a Mynydd Llandygái · Gwynedd · Wales

Updated September 2026

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Location overview

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Ward
Tre-garth a Mynydd Llandygái
Local authority
Gwynedd
Constituency
Bangor Aberconwy
Postcode district
LL57
Postcode sector
LL57 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL57 4YU 57 m
LL57 4YS 72 m
LL57 4YR 129 m
LL57 4YP 168 m
LL57 4YY 231 m
Complete postcode fields and official codes
Postcode
LL57 4YT
Status
Terminated
Introduced
1 January 1980
Terminated
1 December 1998
Postcode area
LL
Postcode district
LL57
Postcode sector
LL57 4
Latitude
53.175322
Longitude
-4.073800
British National Grid easting
261,493
British National Grid northing
366,253

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Electoral ward
Tre-garth a Mynydd Llandygái · W05001563
Parish or community
W04000073
Westminster constituency
Bangor Aberconwy · W07000083
Output area
W00000597
Lower layer super output area
Gwynedd 003E · W01000115
Middle layer super output area
Gwynedd 003 · W02000012

Postcode source versions

Explore LL57

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
9
Primary
0
Secondary
0

  1. Ysgol Dyffryn Ogwen Bethesda

    Welsh establishment

    1.0 km

  2. Ysgol Pen-y-bryn

    Welsh establishment

    1.2 km

  3. Ysgol Abercaseg

    Welsh establishment

    1.4 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
317
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 150
  • Anti social behaviour 51
  • Criminal damage and arson 33
  • Public order 23
  • Other theft 20

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
LL57 4 residents
5,821

Age bands in LL57 4

Wider postcode sector
Age 0 to 14
16.1%

958 residents

Age 15 to 24
14%

833 residents

Age 25 to 44
25.3%

1,504 residents

Age 45 to 64
26.6%

1,583 residents

Age 65 and over
17.9%

1,067 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

  • CANOLFAN FEDDYGOL YR HEN

    STATION ROAD, BETHESDA, BANGOR, LL57 3NE

    ODS code W94028

    735 m

Nearby transport

  • Pont Galedffrwd

    BCT · Coed-y-parc

    0.1 miles

  • Pont Galedffrwd

    BCT · Coed-y-parc

    0.1 miles

  • Coed y Parc

    BCT · Coed-y-parc

    0.1 miles

  • Coed y Parc

    BCT · Coed-y-parc

    0.2 miles

  • Bethesda Surgery

    BCT · Bethesda

    0.5 miles

Evidence in context

Schools

9 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Dyffryn Ogwen Bethesda is the nearest published school at 0.6 miles.

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

Recorded crime

317 published events cover 12 months, averaging 26.417 events per published month. The largest recorded category is Violence and sexual offences with 150 events.

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