SA40
Postcode districtPostcode district covering Llanybydder, Glan-Duar and Dre-fach, in Carmarthenshire and Ceredigion.
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 SA40 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 100% of people in SA40 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How SA40 compares
Each dot is a postcode district. The black line marks the middle one.
Is SA40 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SA40 at a rate of 83.3 per 1,000 people.
That compares with 86.6 per 1,000 people across the SA postcode area.
In August 2026 alone, 13 cases of crime and anti-social behaviour were recorded in SA40.
In the 12 months to August 2026, the most common types were anti-social behaviour (74), violence and sexual offences (74) and other crime (27).
A year earlier, the recorded crime rate in SA40 was 50.6 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 SA40, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SA40 has no single figure. Of its 2 neighbourhoods with a rank:
- Decile 4: 1 neighbourhood
- Decile 5: 1 neighbourhood
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in SA40
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Carmarthenshire 001D | 1,182 | 87.1 per 1,000 | 4 | 86.2% |
| Ceredigion 008E | 1,742 | 62.6 per 1,000 | 5 | 44.5% |
MPs for SA40
- Ann DaviesPlaid CymruMP for Caerfyrddin52% of SA40’s postcodes
- Ben LakePlaid CymruMP for Ceredigion Preseli48% of SA40’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 SA401
Councils SA40 covers2
Postcode districts next to SA404
More in the SA postcode area2
SA40 in brief
SA40 is a postcode district covering Llanybydder, Glan-Duar and Dre-fach, in Carmarthenshire and Ceredigion.
About 2,508 people lived in SA40 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £208,500 in 2025 across 32 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 83.3 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SA40 was £208,500 in 2025.
SA40 had 2,461 usual residents at the census.
About 100% of people in SA40 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SA40, 65.9% of homes and businesses could get gigabit-capable broadband in January 2026.