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LL55

UK postcode district

Part of Caernarfon

Updated September 2026

District overview

Postcode units
993
Current units
741
Coordinate coverage
93%
Electoral wards
14

Coverage context

Countries represented
Wales
English regions represented
W99999999
Local authority codes
1
Terminated postcode units
252

Postcode sectors in LL55

Choose a sector to browse its complete postcode-unit directory.

5 sectors
9,299 recorded sales at this postcode
Address Date Price
4, Minffrwd Terrace, Ceunant, Caernarfon, LL55 4RR 22 July 2026 £232,000
34, Maes Padarn, Llanberis, Caernarfon, LL55 4TE 22 July 2026 £230,000
44, Pentre Helen, Deiniolen, Caernarfon, LL55 3LN 16 July 2026 £157,000

Schools

Across this district

View schools report
Open schools
15
Primary
0
Secondary
0

Recorded crime

Across this district

View crime report
Published events
2,216
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 909
  • Anti social behaviour 354
  • Shoplifting 213
  • Criminal damage and arson 188
  • Public order 159

Census 2021

Population and age profile

LL55 usual residents
21,571
Age-profile population
21,748

Age bands in LL55

Postcode district
Age 0 to 14
17.4%
3,793 residents
Age 15 to 24
10.7%
2,335 residents
Age 25 to 44
24%
5,226 residents
Age 45 to 64
26.6%
5,782 residents
Age 65 and over
21.2%
4,612 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

The median Ofcom availability percentage across 727 current postcode units in this district. Each postcode is weighted equally, not by premises.

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%

In this district, 594 postcode units had 100% superfast coverage, 426 postcode units had 100% gigabit-capable coverage, 17 postcode units had at least some premises without decent fixed or fixed-wireless access.

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, coverage at January 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

4

in this district

  • LIVERPOOL HOUSE

    WAUNFAWR, CAERNARFON, LL55 4YY

    ODS code W94039

  • MEDDYGFA HAFAN

    DOC FICTORIA, CAERNARFON, LL55 1TH

    ODS code W94030

  • PRIMARY CARE CS

    ERYLDON, CAMPBELL ROAD, CAERNARFON, LL55 1HU

    ODS code W00209

  • THE SURGERY

    LLANBERIS SURGERY, HIGH STREET, LLANBERIS, CAERNARFON, LL55 4SU

    ODS code W94017

Evidence in context

Property market

The five-year median is £190,025 from 1,476 recorded sales in LL55. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Gwynedd is £206,665 in June 2026, up 5.7% year on year.

Schools

15 open schools are in scope, including 0 primary and 0 secondary schools.

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

Recorded crime

2,216 published events cover 12 months, averaging 185 events per published month. The largest recorded category is Violence and sexual offences with 909 events.

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