LL66 0AT

Twrcelyn · Isle of Anglesey · Wales

Updated September 2026

Compare this postcode

Location overview

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Post town
Rhosgoch
Local authority
Isle of Anglesey
Constituency
Ynys Môn
Postcode district
LL66
Postcode sector
LL66 0

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL67 0LS 662 m
LL66 0AU 707 m
LL66 0AR 879 m
LL66 0AY 1.1 km
LL66 0AS 1.5 km
Complete postcode fields and official codes
Postcode
LL66 0AT
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL66
Postcode sector
LL66 0
Latitude
53.400378
Longitude
-4.424530
British National Grid easting
238,905
British National Grid northing
392,021

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Isle of Anglesey · W06000001
Electoral ward
Twrcelyn · W05001504
Parish or community
W04000011
Westminster constituency
Ynys Môn · W07000112
Output area
W00009981
Lower layer super output area
Isle of Anglesey 001C · W01000018
Middle layer super output area
Isle of Anglesey 001 · W02000001

Postcode source versions

Explore LL66

1 recorded sale at this postcode
Address Date Price
Siop Y Goeden, Rhosgoch, LL66 0AT 17 March 2023 £399,950

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
4
Primary
0
Secondary
0
  1. Ysgol Gynradd Cemaes

    Welsh establishment

    2.3 km
  2. Ysgol Gymuned Llanfechell

    Welsh establishment

    2.6 km
  3. Ysgol Gymuned Garreglefn

    Welsh establishment

    3.2 km

Census 2021

Population and age profile

Postcode residents
7

3 female, 4 male

Postcode households
4
Residents per household
1.8
LL66 0 residents
236

This postcode contained 3% of the sector's usual residents on Census Day. The age profile describes the wider LL66 0 sector, not people in this individual postcode.

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.

Nearby transport

  • Betws Council Houses

    BCT · Llanbadrig

    1.0 miles
  • Betws Council Houses

    BCT · Llanbadrig

    1.0 miles
  • Gadlys Hotel Turn

    BCT · Cemaes Bay

    1.1 miles
  • Gadlys Hotel Turn

    BCT · Cemaes Bay

    1.1 miles
  • Capel Libanus War Memorial

    BCT · Llanfechell

    1.3 miles

Evidence in context

Property market

The five-year median is £399,950 from 1 recorded sale in LL66 0AT. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Isle of Anglesey is £239,726 in June 2026, up 6.7% year on year.

Schools

4 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gynradd Cemaes is the nearest published school at 1.4 miles.

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