Schools
10 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Llandygai is the nearest published school at 1.7 miles.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
LL57 3LN
Arllechwedd · Gwynedd · Wales
Updated September 2026
Compare this postcodeLocation overview
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- Ward
- Arllechwedd
- Local authority
- Gwynedd
- Constituency
- Bangor Aberconwy
- Postcode district
- LL57
- Postcode sector
- LL57 3
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- LL57 3LN
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- LL
- Postcode district
- LL57
- Postcode sector
- LL57 3
- Latitude
- 53.213912
- Longitude
- -4.057616
- British National Grid easting
- 262,698
- British National Grid northing
- 370,514
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
- Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
- Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
- Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence
Explore LL57
Schools
Within 3.1 miles of this postcode
- Open schools
- 10
- Primary
- 0
- Secondary
- 0
- 2.8 km
Ysgol Llandygai
Welsh establishment
- 2.9 km
Ysgol Gynradd Llanllechid
Welsh establishment
- 3.3 km
Ysgol Tregarth
Welsh establishment
Recorded crime
Within 1 mile of this postcode
- Published events
- 5
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Drugs 1
- Burglary 1
- Other theft 1
- Vehicle crime 1
- Anti social behaviour 1
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%
- Age 15 to 24
- 11.3%
- Age 25 to 44
- 25%
- Age 45 to 64
- 28.2%
- Age 65 and over
- 17.8%
989 residents
627 residents
1,390 residents
1,570 residents
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+
- 50%
- Ultrafast, 100 Mbit/s+
- 50%
- Ultrafast, 300 Mbit/s+
- 50%
- Gigabit-capable
- 50%
- Unable to receive decent fixed or FWA broadband
- 0%
- Next Generation Access
- 50%
- Decent broadband available from fixed wireless
- 100%
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
3
within 5 km straight-line
CANOLFAN FEDDYGOL YR HEN
STATION ROAD, BETHESDA, BANGOR, LL57 3NE
ODS code W94028
3.7 km
BRON DERW MEDICAL CENTRE
GLYNNE ROAD, BANGOR, LL57 1AH
ODS code W94034
4.6 km
GLANFA
ORME ROAD, BANGOR, LL57 1AY
ODS code W94040
4.7 km
Nearby transport
- 0.5 miles
Ty`n-yr-hendre
BCT · Tal-y-bont
- 0.6 miles
Turnpike House
BCT · Tal-y-bont
- 0.6 miles
Turnpike House
BCT · Tal-y-bont
- 1.1 miles
Wig Farm
BCT · Abergwyngregyn
- 1.1 miles
Wig Farm
BCT · Abergwyngregyn
Evidence in context
Recorded crime
5 published events cover 12 months, averaging 0.417 events per published month. The largest recorded category is Drugs with 1 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.