Schools
8 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Abercaseg is the nearest published school at 0.7 miles.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
LL57 4YJ
Tre-garth a Mynydd Llandygái · Gwynedd · Wales
Updated September 2026
Compare this postcodeLocation overview
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- Local authority
- Gwynedd
- Constituency
- Bangor Aberconwy
- Postcode district
- LL57
- Postcode sector
- LL57 4
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- LL57 4YJ
- Status
- Current
- Introduced
- 1 October 2023
- Terminated
- Not published
- Postcode area
- LL
- Postcode district
- LL57
- Postcode sector
- LL57 4
- Latitude
- 53.169758
- Longitude
- -4.063911
- British National Grid easting
- 262,136
- British National Grid northing
- 365,615
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
- W00000599
- Lower layer super output area
- Gwynedd 003E · W01000115
- 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
- 8
- Primary
- 0
- Secondary
- 0
- 1.1 km
Ysgol Abercaseg
Welsh establishment
- 1.3 km
Ysgol Pen-y-bryn
Welsh establishment
- 1.4 km
Ysgol Dyffryn Ogwen Bethesda
Welsh establishment
Recorded crime
Within 1 mile of this postcode
- Published events
- 296
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 140
- Anti social behaviour 43
- Criminal damage and arson 32
- Public order 23
- Other theft 19
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%
- Age 15 to 24
- 14%
- Age 25 to 44
- 25.3%
- Age 45 to 64
- 26.6%
- Age 65 and over
- 17.9%
958 residents
833 residents
1,504 residents
1,583 residents
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
1.3 km
Nearby transport
- 0.4 miles
Bodforis
BCT · Braichmelyn
- 0.4 miles
Bodforis
BCT · Braichmelyn
- 0.5 miles
Coed y Parc
BCT · Coed-y-parc
- 0.5 miles
Coed y Parc
BCT · Coed-y-parc
- 0.6 miles
Glan Ffrydlas
BCT · Bethesda
Evidence in context
Recorded crime
296 published events cover 12 months, averaging 24.667 events per published month. The largest recorded category is Violence and sexual offences with 140 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.