SA18
Postcode districtPostcode district covering Ammanford, in Carmarthenshire and Neath Port Talbot.
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 SA18 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 29% of people in SA18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How SA18 compares
Each dot is a postcode district. The black line marks the middle one.
Is SA18 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SA18 at a rate of 74.6 per 1,000 people.
That compares with 86.6 per 1,000 people across the SA postcode area.
In August 2026 alone, 208 cases of crime and anti-social behaviour were recorded in SA18.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,140), other crime (412) and anti-social behaviour (243).
A year earlier, the recorded crime rate in SA18 was 76.0 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 SA18, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SA18 has no single figure. Of its 17 neighbourhoods with a rank:
- Decile 2: 2 neighbourhoods
- Decile 3: 6 neighbourhoods
- Decile 4: 3 neighbourhoods
- Decile 5: 2 neighbourhoods
- Decile 7: 2 neighbourhoods
- Decile 8: 2 neighbourhoods
Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.
Neighbourhoods in SA18
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Carmarthenshire 010A | 2,049 | 116.2 per 1,000 | 4 | 88.6% |
| Carmarthenshire 010B | 1,159 | 73.3 per 1,000 | 3 | 93.4% |
| Carmarthenshire 010C | 1,347 | 60.2 per 1,000 | 4 | 86.5% |
| Carmarthenshire 010D | 1,403 | 79.2 per 1,000 | 3 | 99.2% |
| Carmarthenshire 011A | 2,303 | 36.3 per 1,000 | 8 | 76.0% |
| Carmarthenshire 011B | 2,087 | 57.4 per 1,000 | 3 | 15.3% |
| Carmarthenshire 011C | 1,957 | 66.3 per 1,000 | 5 | 81.1% |
| Carmarthenshire 011D | 2,306 | 56.0 per 1,000 | 5 | 87.9% |
| Carmarthenshire 013A | 1,128 | 131.2 per 1,000 | 2 | 90.5% |
| Carmarthenshire 013B | 1,619 | 235.0 per 1,000 | 3 | 83.1% |
| Carmarthenshire 013C | 2,398 | 66.5 per 1,000 | 7 | 78.2% |
| Carmarthenshire 013D | 1,416 | 71.6 per 1,000 | 3 | 94.5% |
| Carmarthenshire 013E | 1,276 | 50.8 per 1,000 | 8 | 63.9% |
| Carmarthenshire 017C | 2,412 | 45.3 per 1,000 | 7 | 91.7% |
| Neath Port Talbot 020C | 1,597 | 53.5 per 1,000 | 3 | 96.7% |
| Neath Port Talbot 020D | 1,260 | 67.4 per 1,000 | 2 | 93.9% |
| Neath Port Talbot 020E | 1,361 | 66.9 per 1,000 | 4 | 97.5% |
MPs for SA18
- Ann DaviesPlaid CymruMP for Caerfyrddin78% of SA18’s postcodes
- David ChadwickLiberal DemocratMP for Brecon, Radnor and Cwm Tawe13% of SA18’s postcodes
- Dame Nia GriffithLabourMP for Llanelli6.2% of SA18’s postcodes
- Tonia AntoniazziLabourMP for Gower2.1% of SA18’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.
Middle areas in SA183
Postcode sectors in SA184
Councils SA18 covers2
Towns in SA181
Postcode districts next to SA188
Nearest rail stations3
More in the SA postcode area2
SA18 in brief
SA18 is a postcode district covering Ammanford, in Carmarthenshire and Neath Port Talbot.
About 30,595 people lived in SA18 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £182,750 in 2025 across 368 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 74.6 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SA18 was £182,750 in 2025.
SA18 had 29,980 usual residents at the census.
About 29% of people in SA18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SA18, 83.4% of homes and businesses could get gigabit-capable broadband in January 2026.