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LL56

Postcode district

Postcode district covering Y Felinheli, Y Wern and Aber Pwll, in Gwynedd.

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an LL56 postcode. How census figures are added up

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in LL56 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£204,000
Joint 417th cheapest of 2,235
Worked out by Open Index
Population
2,333
295th least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
96.7%
UK 87.8%
Ofcom · Jan 2026

How LL56 compares

Each dot is a postcode district. The black line marks the middle one.

LL56Middle
Median sale price57 postcode districts, LL · 2025
Median sale price: every postcode district in LL57 areas from £130,250 to £435,500. The middle area is £208,750. LL56 is £204,000.
£204,00026th cheapest
Population66 postcode districts, LL · 2021
Population: every postcode district in LL66 areas from 259 to 42,043. The middle area is 3,858. LL56 is 2,333.
2,33328th least populated
People in radon Affected Area squares66 postcode districts, LL · 2022
People in radon Affected Area squares: every postcode district in LL66 areas from 0.0% to 100.0%. The middle area is 100.0%. LL56 is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage66 postcode districts, LL · Jan 2026
Gigabit broadband coverage: every postcode district in LL66 areas from 1.6% to 98.8%. The middle area is 78.7%. LL56 is 96.7%.
96.7%5th highest

Is LL56 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LL56 at a rate of 56.4 per 1,000 people.

That compares with 97.5 per 1,000 people across the LL postcode area.

In August 2026 alone, 20 cases of crime and anti-social behaviour were recorded in LL56.

In the 12 months to August 2026, the most common types were violence and sexual offences (66), anti-social behaviour (26) and other crime (17).

A year earlier, the recorded crime rate in LL56 was 65.1 per 1,000 people.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

Deprivation in LL56, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so LL56 has no single figure. Of its 1 neighbourhood with a rank:
  • Decile 8: 1 neighbourhood

Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.

Neighbourhoods in LL56

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Gwynedd 004D2,33056.4 per 1,000896.7%

MPs for LL56

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Postcode sectors in LL561

Council1

Postcode districts next to LL562

More in the LL postcode area2

LL56 in brief

LL56 is a postcode district covering Y Felinheli, Y Wern and Aber Pwll, in Gwynedd.

About 2,288 people lived in LL56 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £204,000 in 2025 across 51 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 56.4 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in LL56 was £204,000 in 2025.

LL56 had 2,333 usual residents at the census.

About 100% of people in LL56 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In LL56, 96.7% of homes and businesses could get gigabit-capable broadband in January 2026.