SA43 postcode district

Postcodes and sectors

561 of the district's 685 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 52.08748, -4.62811, which locates the district, not a building.

Companies registered in SA43

Companies House lists 696 companies with a registered office in SA43; 26 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 SA43

• Wales
• Sir Ceredigion
• Ceredigion
• Sir Benfro
• Pembrokeshire
• Aberteifi
• Cardigan
• Llandudoch
• St Dogmaels
• Aberporth
• Cilgerran
• Llechryd
• Penparc
• Parcllyn
• Blaenporth
• Y Ferwig
• Blaenannerch
• Tresaith
• Pen-y-bryn
• Tan-y-groes
• Llangoedmor
• Bridell
• Llandygwydd
• Gwbert

Roads filed under SA43

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.

• Aberystwyth Road
• Adam Street
• Alltfach
• Anwylfan
• Awel-y-Mor
• Awel yr Afon
• Baptist Street
• Bath-House Road
• Bridge Street
• Bron-y-Dre
• Brongwyn Court
• Bro Teifi
• Brynamora
• Brynawelon
• Brynbedw
• Bryn Gerran
• Brynglas
• Bryngwyn
• Bryn Hafod
• Brynheulwen
• Bryn Onnen
• Cae'r Winllan
• Caemorgan Road
• Cambrian Way
• Carrier's Lane
• Castell Corwg
• Castle Square
• Castle Street
• Cemaes Street
• Chancery Lane
• Church Lane
• Church Street
• Clos Llwyn Piod
• Clos y Fferm
• Clos y Gwyddil
• Cnwc y Dintir
• College Row
• Coronation Drive
• Cwmdegwel
• David Street
• Dolwerdd
• Dol y Dintir
• Ebens Lane
• Erwlas
• Feidr Fach
• Feidrfair
• Feidr Fawr
• Feidr Henffordd
• Feidr Tywod
• Felin Ban
• Ffordd-y-Bedol
• Ffordd-y-Blodau
• Ffordd Llwyncoed
• Ffordd Newydd
• Ffordd Tresaith
• Ffordd y Cwm
• Ffordd y Felin
• Ffordd yr Odyn
• Ffordd Ysgolig
• Finch's Square

Check an address in SA43

Check an address in SA43

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SA43" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SA43

What does an SA43 postcode tell you?

That the address lies in the SA43 district of the SA (Swansea) postcode area, and the place OS Open Names most often lists first for its postcodes is Aberteifi. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 561 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 SA43

• SA378.3 km
• SA4111.5 km
• SA3811.6 km
• SA3614.5 km
• SA4217.3 km
• SA4417.4 km
• SA4522.8 km
• SA6624.0 km
• SA4725.2 km
• SA6525.9 km
• SA3426.2 km
• SA3927.4 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids