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LL57 3AQ

Arllechwedd · Gwynedd · Wales

Updated September 2026

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Location overview

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Ward
Arllechwedd
Local authority
Gwynedd
Constituency
Bangor Aberconwy
Postcode district
LL57
Postcode sector
LL57 3

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL57 3DL 272 m
LL57 3DN 300 m
LL57 3AJ 371 m
LL57 3DW 429 m
LL57 4RR 482 m
Complete postcode fields and official codes
Postcode
LL57 3AQ
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL57
Postcode sector
LL57 3
Latitude
53.191610
Longitude
-4.076069
British National Grid easting
261,394
British National Grid northing
368,069

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Gwynedd · W06000002
Electoral ward
Arllechwedd · W05001510
Parish or community
W04000082
Westminster constituency
Bangor Aberconwy · W07000083
Output area
W00000258
Lower layer super output area
Gwynedd 003A · W01000050
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 Tregarth

    Welsh establishment

    713 m

  2. Ysgol Gynradd Llanllechid

    Welsh establishment

    770 m

  3. Ysgol Dyffryn Ogwen Bethesda

    Welsh establishment

    1.2 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
236
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 130
  • Anti social behaviour 42
  • Criminal damage and arson 19
  • Public order 15
  • Other theft 8

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
LL57 3 residents
5,563

Age bands in LL57 3

Wider postcode sector
Age 0 to 14
17.8%

989 residents

Age 15 to 24
11.3%

627 residents

Age 25 to 44
25%

1,390 residents

Age 45 to 64
28.2%

1,570 residents

Age 65 and over
17.8%

989 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.

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 straight-line

  • CANOLFAN FEDDYGOL YR HEN

    STATION ROAD, BETHESDA, BANGOR, LL57 3NE

    ODS code W94028

    1.3 km

Nearby transport

  • Brynbella Hill

    BCT · Rachub

    0.2 miles

  • Brynbella Hill

    BCT · Rachub

    0.2 miles

  • Brynbella Cottage

    BCT · Rachub

    0.2 miles

  • Brynbella Cottage

    BCT · Rachub

    0.3 miles

  • Bro Derfel

    BCT · Tregarth

    0.3 miles

Evidence in context

Schools

9 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Tregarth is the nearest published school at 713 m.

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

Recorded crime

236 published events cover 12 months, averaging 19.667 events per published month. The largest recorded category is Violence and sexual offences with 130 events.

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