LL58 8YD

Seiriol · Isle of Anglesey · Wales

Updated September 2026

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Location overview

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Ward: Seiriol
Local authority: Isle of Anglesey
Constituency: Ynys Môn
Postcode district: LL58
Postcode sector: LL58 8

Nearby postcodes

Nearby postcode distances
Postcode	Distance
LL58 8YB	335 m
LL58 8PW	836 m
LL58 8YE	946 m
LL58 8YA	1.2 km
LL58 8PH	1.2 km

Complete postcode fields and official codes

Postcode: LL58 8YD
Status: Current
Introduced: 1 January 1980
Terminated: Not published
Postcode area: LL
Postcode district: LL58
Postcode sector: LL58 8
Latitude: 53.308233
Longitude: -4.117073
British National Grid easting: 259,039
British National Grid northing: 381,121

Statistical and administrative geographies

Country: Wales · W92000004
Region: W99999999
Local authority district: Isle of Anglesey · W06000001
Electoral ward: Seiriol · W05001501
Parish or community: W04000013
Westminster constituency: Ynys Môn · W07000112
Output area: W00000175
Lower layer super output area: Isle of Anglesey 005E · W01000035
Middle layer super output area: Isle of Anglesey 005 · W02000005

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 LL58

Schools

Within 3.1 miles of this postcode

View all nearby schools

Open schools: 2
Primary: 0
Secondary: 0

Ysgol Gynradd Llangoed

Welsh establishment
2.2 km
Ysgol Gynradd Beaumaris

Welsh establishment
4.9 km

Census 2021

Population and age profile

Postcode residents: 11
Postcode households: 2
Residents per household: 5.5
LL58 8 residents: 3,516

Age bands in LL58 8

Wider postcode sector

Age 0 to 14: 11.5%
Age 15 to 24: 8.3%
Age 25 to 44: 16.5%
Age 45 to 64: 28.7%
Age 65 and over: 35%

This postcode contained 0.3% of the sector's usual residents on Census Day. The age profile describes the wider LL58 8 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: 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.

Nearby transport

Llanddona Transmitting Station

BCT · Llanddona
0.5 miles
Glanrafon House

BCT · Glan-yr-afon
0.9 miles
Terminus

BCT · Llanddona
1.2 miles
Ponc-y-Felin

BCT · Llanddona
1.2 miles
Ponc-y-Felin

BCT · Llanddona
1.2 miles

Evidence in context

Schools

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

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