LL54
Postcode districtPostcode district covering Penygroes, 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 LL54 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 95% of people in LL54 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How LL54 compares
Each dot is a postcode district. The black line marks the middle one.
Is LL54 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LL54 at a rate of 53.2 per 1,000 people.
That compares with 97.5 per 1,000 people across the LL postcode area.
In August 2026 alone, 72 cases of crime and anti-social behaviour were recorded in LL54.
In the 12 months to August 2026, the most common types were violence and sexual offences (268), anti-social behaviour (152) and other crime (88).
A year earlier, the recorded crime rate in LL54 was 70.6 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 LL54, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so LL54 has no single figure. Of its 6 neighbourhoods with a rank:
- Decile 3: 3 neighbourhoods
- Decile 5: 2 neighbourhoods
- Decile 7: 1 neighbourhood
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in LL54
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Gwynedd 007B | 2,082 | 26.7 per 1,000 | 5 | 88.2% |
| Gwynedd 008A | 1,666 | 46.0 per 1,000 | 7 | 87.3% |
| Gwynedd 008B | 2,175 | 59.5 per 1,000 | 3 | 91.1% |
| Gwynedd 008C | 1,793 | 84.2 per 1,000 | 5 | 94.6% |
| Gwynedd 008D | 1,942 | 43.0 per 1,000 | 3 | 92.0% |
| Gwynedd 011C | 1,557 | 74.9 per 1,000 | 3 | 93.0% |
Your MP
- Liz Saville RobertsPlaid CymruMP for Dwyfor Meirionnydd
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in LL541
Postcode sectors in LL543
Council1
Postcode districts next to LL543
More in the LL postcode area2
LL54 in brief
LL54 is a postcode district covering Penygroes, in Gwynedd.
About 11,497 people lived in LL54 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £165,000 in 2025 across 117 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 53.2 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in LL54 was £165,000 in 2025.
LL54 had 11,140 usual residents at the census.
About 95% of people in LL54 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In LL54, 90.5% of homes and businesses could get gigabit-capable broadband in January 2026.