Schools
7 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gwaun Gynfi is the nearest published school at 233 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
LL55 3HX
Deiniolen · Gwynedd · Wales
Updated September 2026
Compare this postcodeLocation overview
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- Ward
- Deiniolen
- Local authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd
- Postcode district
- LL55
- Postcode sector
- LL55 3
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- LL55 3HX
- Status
- Terminated
- Introduced
- 1 January 2013
- Terminated
- 1 June 2026
- Postcode area
- LL
- Postcode district
- LL55
- Postcode sector
- LL55 3
- Latitude
- 53.146789
- Longitude
- -4.125152
- British National Grid easting
- 257,967
- British National Grid northing
- 363,180
Statistical and administrative geographies
- Country
- Wales · W92000004
- Region
- W99999999
- Local authority district
- Gwynedd · W06000002
- Electoral ward
- Deiniolen · W05001526
- Parish or community
- W04000070
- Westminster constituency
- Dwyfor Meirionnydd · W07000096
- Output area
- W00000324
- Lower layer super output area
- Gwynedd 005A · W01000063
- Middle layer super output area
- Gwynedd 005 · W02000014
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 LL55
Schools
Within 3.1 miles of this postcode
- Open schools
- 7
- Primary
- 0
- Secondary
- 0
- 233 m
Ysgol Gwaun Gynfi
Welsh establishment
- 2.6 km
Ysgol Gymuned Penisarwaun
Welsh establishment
- 3.0 km
Ysgol Gynradd Rhiwlas
Welsh establishment
Recorded crime
Within 1 mile of this postcode
- Published events
- 101
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 65
- Anti social behaviour 9
- Other crime 5
- Public order 5
- Criminal damage and arson 5
Census 2021
Population and age profile
- Postcode residents
- Not supplied
- Postcode households
- Not supplied
- Residents per household
- Not available
- LL55 3 residents
- 2,998
Age bands in LL55 3
Wider postcode sector- Age 0 to 14
- 16.2%
- Age 15 to 24
- 11.6%
- Age 25 to 44
- 22.4%
- Age 45 to 64
- 30%
- Age 65 and over
- 19.8%
495 residents
355 residents
682 residents
914 residents
602 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
3.1 km
Nearby transport
- 0.0 miles
Lon Tai Castell
BCT · Deiniolen
- 0.0 miles
Lon Tai Castell
BCT · Deiniolen
- 0.1 miles
Capel Ebenezer
BCT · Deiniolen
- 0.1 miles
Capel Ebenezer
BCT · Deiniolen
- 0.1 miles
Ysgol Gwaun Gynfi
BCT · Deiniolen
Evidence in context
Recorded crime
101 published events cover 12 months, averaging 8.417 events per published month. The largest recorded category is Violence and sexual offences with 65 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.