LL47
Postcode districtPostcode district covering Talsarnau, Ynys and Llandecwyn, 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 LL47 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 100% of people in LL47 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How LL47 compares
Each dot is a postcode district. The black line marks the middle one.
Is LL47 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LL47 at a rate of 21.1 per 1,000 people.
That compares with 97.5 per 1,000 people across the LL postcode area.
In August 2026 alone, 0 cases of crime and anti-social behaviour were recorded in LL47.
In the 12 months to August 2026, the most common types were violence and sexual offences (7), other crime (3) and anti-social behaviour (1).
A year earlier, the recorded crime rate in LL47 was 26.4 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.
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.
Postcode sectors in LL471
Council1
Postcode districts next to LL473
Nearest rail stations4
More in the LL postcode area2
LL47 in brief
LL47 is a postcode district covering Talsarnau, Ynys and Llandecwyn, in Gwynedd.
About 569 people lived in LL47 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £172,500 in 2025 across 12 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 21.1 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in LL47 was £172,500 in 2025.
LL47 had 541 usual residents at the census.
About 100% of people in LL47 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In LL47, 41.9% of homes and businesses could get gigabit-capable broadband in January 2026.