The SA18 3UN postcode was located in Carmarthenshire, Carmarthenshire postcode town, within Wales, Wales region.
It is now a terminated postcode, it was a Small User postcode introduced in 1980-01 and terminated on 2000-10.
| Name | Type |
|---|---|
| OA21CD | W00003665 |
| LSOA21CD | W01000680 |
| MSOA21CD | W02000152 |
| MSOA21 | Llandybie & Saron |
| Postcode Area | SA18 |
| Ward | Llandybie |
| LTLA22 | Carmarthenshire |
| UTLA22 | Carmarthenshire |
| Region | Wales |
| Country | Wales |
| Co-ordinates | [ -4.0039278342428, 51.821145897995876 ] |