SA48 postcode district

Postcodes and sectors

378 of the district's 471 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 52.14518, -4.11368, which locates the district, not a building.

Companies registered in SA48

Companies House lists 374 companies with a registered office in SA48; 30 of them at addresses 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 SA48

• Wales
• Sir Ceredigion
• Ceredigion
• Lampeter
• Llanbedr Pont Steffan
• Sir Gaerfyrddin
• Carmarthenshire
• Ciliau Aeron
• Cribyn
• Llanwnnen
• Cwmann
• Ram
• Treherbert
• Llangybi
• Cilcennin
• Silian
• Ystrad Aeron
• Llanfair Clydogau
• Tal-sarn
• Mydroilyn
• Dihewyd
• Felinfach
• Cellan
• Pentre-bâch

Roads filed under SA48

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.

• Bridge Street
• Bro Cadarn
• Bro Fallen
• Bro Henllys
• Bro Llan
• Bromeillion
• Bro Tawela
• Bryn Hebog
• Bryn Road
• Bryn Salem
• Bryn Steffan
• Bryn yr Eglwys
• Cae'rffynnon
• Cae Coedmore
• Cae Dash
• Cae Gwen
• Cae Morgan
• Cae Ram
• Cambrian Road
• Cellan Road
• Church Mount
• Church Street
• Clos Tawela
• College Street
• Cwrt Deri
• Cwrt Dulas
• Cysgod-y-Coed
• Cysgod y Bryn
• Cysgod y Gaer
• Dol y Brenin
• Drovers Road
• Dôl Dalis
• Falcondale Drive
• Ffordd y Bryn
• Ffordd y Porthmyn
• Ffynon Bedr
• Forest Road
• Fron Ganol
• Golwg y Dyffryn
• Greenfield Terrace
• Gwel-y-Creuddyn
• Harford Square
• Heol Dolanog
• Heol Hathren
• High Street
• Kings Mead
• Llanwnen Road
• Maes-y-Deri
• Maes-y-Tren
• Maes Aeron
• Maeshyfryd
• Maesllan
• Maesmynach
• Maestir Road
• Maesycoed Road
• Maesyfelin
• Market Street
• Mill Street
• Mount Walk
• New Street

Check an address in SA48

Check an address in SA48

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SA48" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SA48

What does an SA48 postcode tell you?

That the address lies in the SA48 district of the SA (Swansea) postcode area, and the place OS Open Names most often lists first for its postcodes is Sir Ceredigion. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 378 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 SA48

• SA408.0 km
• SA4713.7 km
• SA4614.2 km
• SY2515.9 km
• SA3916.6 km
• SA4518.1 km
• SA4418.8 km
• SA1924.0 km
• SY2326.4 km
• SA2026.8 km
• SA3827.5 km
• SA3228.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids