| Postcode district | Post town | Coverage | Local authority area(s) |
|---|
| SA1 | SWANSEA | Bonymaen,Copper Quarter,Crymlyn Burrows,Danygraig,Greenhill,Hafod,Jersey Marine,Landore,Maritime Quarter,Mayhill,Mount Pleasant,Pentrechwyth,Port Tennant,St. Thomas,City Centre,Townhill,Waun Wen,Winch Wen,Winch Wen Industrial Estate | Swansea |
|---|
| SA2 | SWANSEA | Brynmill,Cockett,Derwen Fawr,Dunvant,Fairwood,Glanmor,Hendrefoilan,Hendrefoilan Student Village,Ilston,Killay,Sketty,Sketty Park,Singleton Park (University Campus),Tycoch,Uplands,Upper Killay | Swansea |
|---|
| SA3 | SWANSEA | Bishopston,Blackpill,Caswell,Clyne,Langland,Mumbles,Oystermouth,Southgate, South Gower,West Cross, | Swansea |
|---|
| SA4 | SWANSEA | Blue Anchor,Gorseinon,Gowerton,Hendy (Carmarthenshire),Loughor, North Gower,Penllergaer,Penclawdd,Pontarddulais,Three Crosses | Swansea,Carmarthenshire |
|---|
| SA5 | SWANSEA | Blaenymaes,Cwmdu,Cwmdu Industrial Estate,Felindre,Fforestfach,Gendros,Llangyfelach,Llewitha,Manselton,Penlan,Portmead,Tirdeunaw,Waunarlwydd | Swansea |
|---|
| SA6 | SWANSEA | Clase,Cwmrhydyceirw,Clydach,Morriston,Plasmarl,Plasmarl Industrial Estate,Swansea Enterprise Park,Ynystawe,Ynysforgan | Swansea |
|---|
| SA7 | SWANSEA | Birchgrove,Glais,Llansamlet,Swansea Enterprise Park,Talycoppa, Trallwn | Swansea |
|---|
| SA8 | SWANSEA | Alltwen,Cwmtawe,Pontardawe,Rhos,Rhyd-y-fro,Trebanos,Ynysmeudwy | Neath Port Talbot |
|---|
| SA9 | SWANSEA | Abercraf,Cefnbrynbrain,Cwmllynfell,Cwmtwrch,Lower Cwmtwrch,Rhiwfawr,Upper Cwmtwrch,Ystalyfera,Ystradgynlais,Ystradowen | Neath Port Talbot,Powys, Carmarthenshire |
|---|
| SA10 | NEATH | Aberdulais,Bryncoch,Cadoxton,Caewern,Coed Darcy,Coelbren,Crynant,Jersey Marine,Llandarcy,Neath Abbey,Onllwyn,Seven Sisters,Skewen | Neath Port Talbot, Powys |
|---|
| SA11 | NEATH | Blaengwrach,Briton Ferry,Cimla,Glynneath, Neath town centre,Pontneddfechan,Resolven,Tonmawr,Tonna | Neath Port Talbot, Powys |
|---|
| SA12 | PORT TALBOT | Aberavon,Baglan,Cwmafan, Port Talbot town centre,Sandfields | Neath Port Talbot |
|---|
| SA13 | PORT TALBOT | Bryn,Cymmer,Margam,Taibach | Neath Port Talbot |
|---|
| SA14 | LLANELLI | Llanelli (east),Bynea,Dafen,Llangennech | Carmarthenshire |
|---|
| SA15 | LLANELLI | Llanelli (west and town centre),Felinfoel,Pontyates | Carmarthenshire |
|---|
| SA16 | BURRY PORT | Burry Port,Pembrey | Carmarthenshire |
|---|
| SA17 | FERRYSIDE | Ferryside,Trimsaran | Carmarthenshire |
|---|
| KIDWELLY | Kidwelly,Llansaint,Mynyddygarreg,Carway | Carmarthenshire |
| SA18 | AMMANFORD | Ammanford,Betws,Garnswllt,Gwaun-Cae-Gurwen,Lower Brynamman,Upper Brynamman | Carmarthenshire, Neath Port Talbot, Swansea |
|---|
| SA19 | LLANDEILO | Llandeilo | Carmarthenshire |
|---|
| LLANGADOG | Llangadog | Carmarthenshire |
| LLANWRDA | Llanwrda | Carmarthenshire |
| SA20 | LLANDOVERY | Llandovery | Carmarthenshire |
|---|
| SA31 | CARMARTHEN | Carmarthen town centre,Cwmffrwd | Carmarthenshire |
|---|
| SA32 | CARMARTHEN | Nantgaredig,Dryslwyn,Porthyrhyd,Llangathen | Carmarthenshire |
|---|
| SA33 | CARMARTHEN | Bancyfelin,Pendine,Blaenycoed,St Clears | Carmarthenshire |
|---|
| SA34 | WHITLAND | Whitland,Tavernspite | Carmarthenshire, Pembrokeshire |
|---|
| SA35 | LLANFYRNACH | Llanfyrnach | Pembrokeshire |
|---|
| SA36 | GLOGUE | Glogue, Hermon | Pembrokeshire |
|---|
| SA37 | BONCATH | Boncath,Blaenffos | Pembrokeshire |
|---|
| SA38 | NEWCASTLE EMLYN | Newcastle Emlyn | Carmarthenshire,Ceredigion, Pembrokeshire |
|---|
| SA39 | PENCADER | Pencader,Llanfihangel-ar-Arth,Llanllwni | Carmarthenshire, Ceredigion |
|---|
| SA40 | LLANYBYDDER | Llanybydder,Llanwenog,Gorsgoch | Carmarthenshire, Ceredigion |
|---|
| SA41 | CRYMYCH | Crymych,Eglwyswrw | Pembrokeshire |
|---|
| SA42 | NEWPORT | Newport,Dinas Cross | Pembrokeshire |
|---|
| SA43 | CARDIGAN | Cardigan,Cilgerran,St Dogmaels | Ceredigion, Pembrokeshire |
|---|
| SA44 | LLANDYSUL | Llandysul,Dre-fach Felindre,Pentrecwrt | Ceredigion, Carmarthenshire |
|---|
| SA45 | NEW QUAY | New Quay | Ceredigion |
|---|
| SA46 | ABERAERON | Aberaeron | Ceredigion |
|---|
| SA47 | LLANARTH | Llanarth | Ceredigion |
|---|
| SA48 | LAMPETER | Lampeter, Cwmann | Ceredigion, Carmarthenshire |
|---|
| SA48 | ABERAERON | | non-geographic[3] |
|---|
| SA61 | HAVERFORDWEST | Haverfordwest town centre,Merlin's Bridge | Pembrokeshire |
|---|
| SA62 | HAVERFORDWEST | St Davids,Johnston | Pembrokeshire |
|---|
| SA63 | CLARBESTON ROAD | Clarbeston | Pembrokeshire |
|---|
| SA64 | GOODWICK | Goodwick | Pembrokeshire |
|---|
| SA65 | FISHGUARD | Fishguard,Cwm Gwaun | Pembrokeshire |
|---|
| SA66 | CLYNDERWEN | Clynderwen,Efailwen | Pembrokeshire, Carmarthenshire |
|---|
| SA67 | NARBERTH | Narberth | Pembrokeshire |
|---|
| SA68 | KILGETTY | Kilgetty | Pembrokeshire |
|---|
| SA69 | SAUNDERSFOOT | Saundersfoot | Pembrokeshire |
|---|
| SA70 | TENBY | Tenby,Penally | Pembrokeshire |
|---|
| SA71 | PEMBROKE | Pembroke | Pembrokeshire |
|---|
| SA72 | PEMBROKE | | non-geographic[3][4] |
|---|
| SA72 | PEMBROKE DOCK | Pembroke Dock | Pembrokeshire |
|---|
| SA73 | MILFORD HAVEN | Milford Haven | Pembrokeshire |
|---|
| SA80 | SWANSEA | Department for Work and Pensions | non-geographic[3] |
|---|
| SA99 | SWANSEA | Driver and Vehicle Licensing Agency | non-geographic[3] |
|---|