LL21
Postcode districtPostcode district covering Corwen and Llandrillo, in Denbighshire and 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 LL21 postcode. How census figures are added up
Gigabit coverage by postcode district
Connected Nations (Ofcom) · January 2026
In LL21, 70.8% of homes and businesses could get gigabit-capable broadband in January 2026.
How LL21 compares
Each dot is a postcode district. The black line marks the middle one.
Is LL21 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LL21 at a rate of 53.5 per 1,000 people.
That compares with 97.5 per 1,000 people across LL.
In August 2026 alone, 27 cases of crime and anti-social behaviour were recorded in LL21.
In the 12 months to August 2026, the most common types were violence and sexual offences (169), anti-social behaviour (56) and other crime (50).
A year earlier, the recorded crime rate in LL21 was 52.9 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 LL21, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so LL21 has no single figure. Of its 4 neighbourhoods with a rank:
- Decile 4: 2 neighbourhoods
- Decile 5: 1 neighbourhood
- Decile 6: 1 neighbourhood
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in LL21
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Conwy 014D | 1,399 | 32.4 per 1,000 | 5 | 71.0% |
| Denbighshire 015A | 1,245 | 87.2 per 1,000 | 4 | 70.0% |
| Denbighshire 016A | 996 | 49.8 per 1,000 | 4 | 82.4% |
| Denbighshire 016B | 1,212 | 32.8 per 1,000 | 6 | 80.9% |
MPs for LL21
- Liz Saville RobertsPlaid CymruMP for Dwyfor Meirionnydd57% of LL21’s postcodes
- Claire HughesLabourMP for Bangor Aberconwy29% of LL21’s postcodes
- Becky GittinsLabourMP for Clwyd East14% of LL21’s postcodes
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 LL212
Councils LL21 covers2
Postcode districts next to LL217
More in the LL postcode area2
LL21 in brief
LL21 is a postcode district covering Corwen and Llandrillo, in Denbighshire and Conwy.
About 6,144 people lived in LL21 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £213,500 in 2025 across 62 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 53.5 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in LL21 was £213,500 in 2025.
LL21 had 6,015 usual residents at the census.
In LL21, 70.8% of homes and businesses could get gigabit-capable broadband in January 2026.
In LL21, 1.6% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.