SA4 0AD is located in the Hendy electoral ward, within the unitary authority of Carmarthenshire and the Welsh Parliamentary constituency of Llanelli. The Local Health Board is Hywel Dda University and the police force is Dyfed-Powys. This postcode has been in use since March 2021.
| Easting | 258301 |
| Northing | 204084 |
| Latitude | 51.717538 |
| Longitude | -4.052641 |
| Country | Wales |
| Postcode District | SA4 |
| Ward | Hendy |
|---|---|
| Constituency | Llanelli |
3, COED GLAS, HENDY, SWANSEA, SA4 0AD 2021 3 JUN £316,000 |
2021 1 MAR £265,000 |
| Fforest Road (Heol Fforest) | Fforest | 319m |
| Fforest Road (Heol Fforest) | Fforest | 328m |
| Primary School (Heol Iscoed) | Hendy | 328m |
| Primary School (Heol Iscoed) | Hendy | 328m |
| Post Office (Heol Iscoed) | Hendy | 373m |
| Pontarddulais Station | 0.5km |
| Llangennech Station | 3.5km |
| Bynea Station | 6km |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Hendy P O | 16:45 | 12:00 | 397m |
| Blackhorse Square | 17:00 | 12:00 | 434m |
| Fforest P O | 16:45 | 12:15 | 461m |
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for SA4 0AD:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL1 | West Wales and The Valleys |
| ITL 3 Code | Name |
| TLL14 | South West Wales |
| LAU 1 Code | Name |
| W06000010 | Carmarthenshire |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SA4 0AD:
| Code | Name | |
|---|---|---|
| OA | W00003586 | |
| LSOA | W01000665 | Carmarthenshire 017A |
| MSOA | W02000158 | Carmarthenshire 017 |
| SA4 0UD | Bronallt Road | 125m |
| SA4 0UE | Bronallt Road | 130m |
| SA4 0UG | Squirrel Walk | 158m |
| SA4 0UJ | Squirrel Walk | 169m |
| SA4 0XS | Golwg Yr Afon | 207m |
| SA4 0ZW | Coed Y Bronallt | 214m |
| SA4 0UH | Squirrel Walk | 232m |
| SA4 0US | Clayton Road | 249m |
| SA4 0UB | Bronallt Road | 265m |
| SA4 0TJ | St Davids Close | 318m |