LL31
Postcode districtPostcode district covering Conwy, Llandudno Junction and Tywyn, in Conwy.
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 LL31 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 100% of people in LL31 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How LL31 compares
Each dot is a postcode district. The black line marks the middle one.
Is LL31 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LL31 at a rate of 74.2 per 1,000 people.
That compares with 97.5 per 1,000 people across the LL postcode area.
In August 2026 alone, 110 cases of crime and anti-social behaviour were recorded in LL31.
In the 12 months to August 2026, the most common types were violence and sexual offences (301), anti-social behaviour (180) and other crime (104).
A year earlier, the recorded crime rate in LL31 was 74.4 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.
Deprivation in LL31, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so LL31 has no single figure. Of its 5 neighbourhoods with a rank:
- Decile 4: 1 neighbourhood
- Decile 6: 1 neighbourhood
- Decile 8: 1 neighbourhood
- Decile 9: 1 neighbourhood
- Decile 10 (Wales’s least deprived 10%): 1 neighbourhood
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in LL31
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Conwy 006B | 1,770 | 54.7 per 1,000 | 8 | 88.2% |
| Conwy 006C | 1,856 | 56.8 per 1,000 | 10 | 99.5% |
| Conwy 006D | 2,770 | 88.6 per 1,000 | 6 | 96.9% |
| Conwy 011D | 1,621 | 156.9 per 1,000 | 4 | 95.4% |
| Conwy 011E | 1,441 | 27.8 per 1,000 | 9 | 97.8% |
Your MP
- Claire HughesLabourMP for Bangor Aberconwy
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 LL311
Postcode sectors in LL311
Council1
Towns in LL311
Postcode districts next to LL312
Nearest rail stations4
More in the LL postcode area2
LL31 in brief
LL31 is a postcode district covering Conwy, Llandudno Junction and Tywyn, in Conwy.
About 10,479 people lived in LL31 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £222,250 in 2025 across 186 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 74.2 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in LL31 was £222,250 in 2025.
LL31 had 10,260 usual residents at the census.
About 100% of people in LL31 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In LL31, 95.7% of homes and businesses could get gigabit-capable broadband in January 2026.