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LL77 7YS

Cefni · Isle of Anglesey · Wales

Updated September 2026

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Location overview

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Post town
Llangefni
Ward
Cefni
Local authority
Isle of Anglesey
Constituency
Ynys Môn
Postcode district
LL77
Postcode sector
LL77 7

Nearby postcodes

Nearby postcode distances
Postcode Distance
LL77 7GD 145 m
LL77 7YT 168 m
LL77 7JR 187 m
LL77 7GE 306 m
LL77 7TY 317 m
Complete postcode fields and official codes
Postcode
LL77 7YS
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL77
Postcode sector
LL77 7
Latitude
53.246608
Longitude
-4.338956
British National Grid easting
244,033
British National Grid northing
374,728

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Isle of Anglesey · W06000001
Electoral ward
Cefni · W05001497
Parish or community
W04000026
Westminster constituency
Ynys Môn · W07000112
Output area
W00000025
Lower layer super output area
Isle of Anglesey 006A · W01000006
Middle layer super output area
Isle of Anglesey 006 · W02000006

Postcode source versions

Explore LL77

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
14 recorded sales at this postcode
Address Date Price
Sante Fe, Rhostrehwfa, Llangefni, LL77 7YS 22 February 2019 £200,000
Berth, Rhostrehwfa, Llangefni, LL77 7YS 10 December 2018 £168,500
Bryn Llwyd, Rhostrehwfa, Llangefni, LL77 7YS 12 September 2018 £159,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
7
Primary
0
Secondary
0

  1. Ysgol Gyfun Llangefni

    Welsh establishment

    1.6 km

  2. Ysgol Corn Hir

    Welsh establishment

    2.0 km

  3. Canolfan Addysg Y Bont

    Welsh establishment

    2.3 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
34
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 16
  • Anti social behaviour 9
  • Criminal damage and arson 4
  • Burglary 3
  • Other theft 1

Census 2021

Population and age profile

Postcode residents
54

22 female, 32 male

Postcode households
19
Residents per household
2.8
LL77 7 residents
7,199

Age bands in LL77 7

Wider postcode sector
Age 0 to 14
19%

1,468 residents

Age 15 to 24
10.3%

797 residents

Age 25 to 44
22.4%

1,730 residents

Age 45 to 64
25.8%

1,988 residents

Age 65 and over
22.5%

1,736 residents

This postcode contained 0.8% of the sector's usual residents on Census Day. The age profile describes the wider LL77 7 sector, not people in this individual postcode.

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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+
85.7%
Ultrafast, 100 Mbit/s+
85.7%
Ultrafast, 300 Mbit/s+
85.7%
Gigabit-capable
85.7%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
85.7%
Decent broadband available from fixed wireless
81%
Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

NHS ODS

GP practices

2

within 5 km

  • COED Y GLYN SURGERY

    COED Y GLYN, CHURCH STREET, LLANGEFNI, LL77 7DU

    ODS code W94029

    2.2 km

  • THE SURGERY

    GWALCHMAI, HOLYHEAD, LL65 4RS

    ODS code W94043

    4.9 km

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Penrhiw

    BCT · Rhostrehwfa

    0.0 miles

  • Penrhiw

    BCT · Rhostrehwfa

    0.1 miles

  • Swn y Gwynt

    BCT · Rhostrehwfa

    0.2 miles

  • Stad Ty Gwyn

    BCT · Rhostrehwfa

    0.2 miles

  • Tan Rallt

    BCT · Rhostrehwfa

    0.5 miles

Evidence in context

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Schools

Published establishments

7 open schools are in scope, including 0 primary and 0 secondary schools. Ysgol Gyfun Llangefni is the nearest published school at 1.0 miles.

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

Recorded crime

Published police records

34 published events cover 12 months, averaging 2.833 events per published month. The largest recorded category is Violence and sexual offences with 16 events.

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