Postcode SA18
Ammanford +19 · Carmarthenshire, Wales
SA18 is the postcode of Ammanford, Betws, Blaengweche and 17 other places in Carmarthenshire, Wales, United Kingdom. This list covers outward codes — the first half of a UK postcode, such as M9 or BN91 — not full postcodes.
- Postcode
- SA18
- County
- Carmarthenshire, Neath Port Talbot, Swansea
- Country
- Wales
- Country
- United Kingdom
20 places with postcode SA18
| Place | County | Location |
|---|---|---|
| Ammanford | Carmarthenshire | 51.793, -3.988 |
| Betws | Carmarthenshire | 51.798, -3.961 |
| Blaengweche | Carmarthenshire | 51.780, -3.948 |
| Brynamman | Carmarthenshire | 51.800, -3.867 |
| Capel Hendre | Carmarthenshire | 51.783, -4.042 |
| Cwmgors | Neath Port Talbot | 51.780, -3.948 |
| Derwydd | Carmarthenshire | 51.841, -4.016 |
| Garnant | Carmarthenshire | 51.801, -3.906 |
| Garnswllt | Swansea | 51.780, -3.948 |
| Glanaman | Carmarthenshire | 51.780, -3.948 |
| Gwaun-Cae-Gurwen | Neath Port Talbot | 51.780, -3.948 |
| Gwaun-leision | Neath Port Talbot | 51.780, -3.948 |
| Llandybie | Carmarthenshire | 51.820, -4.007 |
| Lower Brynamman | Neath Port Talbot | 51.780, -3.948 |
| Pantyffynnon | Carmarthenshire | 51.780, -3.948 |
| Pentre Gwenlais | Carmarthenshire | 51.827, -4.020 |
| Pontamman | Carmarthenshire | 51.780, -3.948 |
| Saron | Carmarthenshire | 51.792, -4.028 |
| Tir-y-dail | Carmarthenshire | 51.780, -3.948 |
| Tycroes | Carmarthenshire | 51.778, -4.020 |
Near Cardiff
The nearest major city is Cardiff, about 64 km away.
Nearby postcodes
Frequently asked questions
Which places use postcode SA18?
Ammanford, Betws, Blaengweche, Brynamman, Capel Hendre, Cwmgors, Derwydd, Garnant, Garnswllt, Glanaman, Gwaun-Cae-Gurwen, Gwaun-leision and 8 more.
Which county and country is SA18 in?
Carmarthenshire, Neath Port Talbot, Swansea, Wales, United Kingdom.
What is the nearest major city to SA18?
Cardiff, about 64 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.