LL40
Postcode districtPostcode district covering Dolgellau and Brithdir, 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 LL40 postcode. How census figures are added up
Gigabit coverage by postcode district
Connected Nations (Ofcom) · January 2026
In LL40, 52.1% of homes and businesses could get gigabit-capable broadband in January 2026.
How LL40 compares
Each dot is a postcode district. The black line marks the middle one.
Is LL40 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in LL40 at a rate of 71.6 per 1,000 people.
That compares with 97.5 per 1,000 people across LL.
In August 2026 alone, 31 cases of crime and anti-social behaviour were recorded in LL40.
In the 12 months to August 2026, the most common types were violence and sexual offences (111), anti-social behaviour (60) and other crime (50).
A year earlier, the recorded crime rate in LL40 was 79.4 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 LL40, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so LL40 has no single figure. Of its 3 neighbourhoods with a rank:
- Decile 5: 1 neighbourhood
- Decile 7: 2 neighbourhoods
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in LL40
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Gwynedd 016C | 1,382 | 36.2 per 1,000 | 5 | 59.0% |
| Gwynedd 016D | 1,182 | 88.4 per 1,000 | 7 | 34.7% |
| Gwynedd 016E | 1,418 | 91.6 per 1,000 | 7 | 64.8% |
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 LL401
Postcode sectors in LL402
Council1
Postcode districts next to LL408
More in the LL postcode area2
LL40 in brief
LL40 is a postcode district covering Dolgellau and Brithdir, in Gwynedd.
About 4,095 people lived in LL40 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £200,000 in 2025 across 66 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 71.6 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in LL40 was £200,000 in 2025.
LL40 had 3,981 usual residents at the census.
In LL40, 52.1% of homes and businesses could get gigabit-capable broadband in January 2026.
In LL40, 2.2% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.