SA19 postcode district

Postcodes and sectors

826 of the district's 979 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.95491, -3.94786, which locates the district, not a building.

Companies registered in SA19

Companies House lists 500 companies with a registered office in SA19; none of them at an address shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for SA19

• Sir Gaerfyrddin
• Carmarthenshire
• Wales
• Llandeilo
• Llangadog
• Rhosmaen
• Llansawel
• Ffairfach
• Llanwrda
• Talley
• Talyllychau
• Rhydcymerau
• Ffarmers
• Cwmifor
• Llansadwrn
• Felindre
• Bethlehem
• Trap
• Ffaldybrenin
• Twynllanan
• Manordeilo
• Caeo
• Caio
• Pumsaint

Roads filed under SA19

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Abbey Terrace
• Alan Road
• Albion Close
• Bank Buildings
• Bank Terrace
• Bank Trapp
• Bethlehem Road
• Blende Road
• Bridge Street
• Brodawel
• Bro Dulais
• Brynawel Terrace
• Bryndulais
• Bryn Iago
• Cae Bach
• Cae Glas Close
• Caledfwlch
• Carmarthen Road
• Carmarthen Street
• Castle Close
• Church Street
• Clarence Road
• Clarendon Road
• Clos Albion
• Clos Cae Glas
• Clos Garth Madryn
• Coedlan Dinefwr
• Crescent Road
• Diana Road
• Dinefwr Avenue
• Dolau Tywi
• Erwtwrch
• George Hill
• George Street
• Ger y Llan
• Ger yr Ysgol
• Golwg-y-Mynydd
• Golwg y Gan
• Golwg yr Haul
• Golwyg yr Allt
• Gorse Road
• Gors Road
• Greenfield Place
• Gwynfe Road
• Heol-y-Banc
• Heol-y-Garreglas
• Heol Alan
• Heol Bethlehem
• Heol Cennen
• Heol Clig
• Heol Crych-Gwyn
• Heol Diana
• Heol Ffigys
• Heol Gelli-Ddu
• Heol Latimer
• Heol Llwyn-Moch
• Heol Myrddin
• Heol Newydd
• Heol Pendref
• Heol Pen Storom

Check an address in SA19

Check an address in SA19

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SA19" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SA19

What does an SA19 postcode tell you?

That the address lies in the SA19 district of the SA (Swansea) postcode area, and the place OS Open Names most often lists first for its postcodes is Sir Gaerfyrddin. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 826 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest SA19

• SA2012.7 km
• SA3216.9 km
• SA1817.5 km
• SA4021.2 km
• SA3921.5 km
• SA922.9 km
• SA4824.0 km
• SA1426.7 km
• SA826.8 km
• SA3127.0 km
• LD529.3 km
• SA631.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids