LL77 7TW

Cefni · Isle of Anglesey · Wales

Updated September 2026

Compare this postcode

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 9ZY 0 m
LL77 9ZZ 0 m
LL77 7ZR 68 m
LL77 7AA 127 m
LL77 9AY 127 m
Complete postcode fields and official codes
Postcode
LL77 7TW
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
LL
Postcode district
LL77
Postcode sector
LL77 7
Latitude
53.253046
Longitude
-4.309879
British National Grid easting
245,996
British National Grid northing
375,381

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Isle of Anglesey · W06000001
Electoral ward
Cefni · W05001497
Parish or community
W04000024
Westminster constituency
Ynys Môn · W07000112
Output area
W00000056
Lower layer super output area
Isle of Anglesey 006B · W01000012
Middle layer super output area
Isle of Anglesey 006 · W02000006

Postcode source versions

Explore LL77

1 recorded sale at this postcode
Address Date Price
Shire Hall, Llangefni, LL77 7TW 22 August 2019 £189,900

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
8
Primary
0
Secondary
0
  1. Canolfan Addysg Y Bont

    Welsh establishment

    291 m
  2. Ysgol Y Graig

    Welsh establishment

    291 m
  3. Ysgol Gyfun Llangefni

    Welsh establishment

    773 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
638
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 281
  • Anti social behaviour 118
  • Shoplifting 66
  • Criminal damage and arson 48
  • Public order 45

Census 2021

Population and age profile

Postcode residents
Not supplied
Postcode households
Not supplied
Residents per household
Not available
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

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+
50%
Ultrafast, 100 Mbit/s+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
50%
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.

GP practices

1

within 5 km

  • COED Y GLYN SURGERY

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

    ODS code W94029

    392 m

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

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

Nearby transport

  • Ynys Mon County Hall

    BCT · Llangefni

    0.0 miles
  • Ysgol y Bont

    BCT · Llangefni

    0.2 miles
  • Ysgol y Bont

    BCT · Llangefni

    0.2 miles
  • Industrial Estate

    BCT · Llangefni

    0.2 miles
  • Llangefni Industrial Estate

    BCT · Llangefni

    0.2 miles

Evidence in context

Schools

8 open schools are in scope, including 0 primary and 0 secondary schools. Canolfan Addysg Y Bont is the nearest published school at 291 m.

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

Recorded crime

638 published events cover 12 months, averaging 53.167 events per published month. The largest recorded category is Violence and sexual offences with 281 events.

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