SA33 postcode district

Postcodes and sectors

642 of the district's 706 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 51.84958, -4.44081, which locates the district, not a building.

Companies registered in SA33

Companies House lists 827 companies with a registered office in SA33; 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 SA33

• Sir Gaerfyrddin
• Carmarthenshire
• Wales
• Sanclêr
• St Clears
• Talacharn
• Laugharne
• Llansteffan
• Pendine
• Pentywyn
• Cynwyl Elfed
• Llanpumsaint
• Pwll-trap
• Llangain
• Meidrim
• Llanmiloe
• Bancyfelin
• Llanybri
• Bronwydd Arms
• Trelech
• Cwmduad
• Llanddowror
• Llangynog
• Llangynin

Roads filed under SA33

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.

• Back Lane
• Banc-y-Llan
• Bay View
• Bellevue Close
• Bethlehem Road
• Bridge Street
• Bro Celynin
• Bron-y-Glyn
• Bryn-y-Wawr
• Bryncaredig
• Cae Ffynnon
• Cae Glas
• Cae Gwyrdd
• Caerwenog
• Cefn Maes
• Church Road
• Church Street
• Cliff Road
• Clifton Street
• Clos Griffith Jones
• Clos Nathanlel
• Clos Pentre
• Clos y Cynin
• Coedmor Avenue
• Coomb Drive
• Cwrt Cae Bach
• Cwrt Melin
• Cwrt Wooford
• Cwrt Y Priordy
• Cysgod y Coed
• Dan y Bryn
• Dol-y-Dderwen
• Drefach Road
• Duncan Street
• Dylan's Walk
• Ffynnongain Lane
• Frogmore Gardens
• Frogmore Street
• Fronheulog
• Gardde Fields
• Gelli Aur
• Ger-y-Capel
• Ger-y-Nant
• Gerddi Mair
• Ger y Duad
• Ger y Marbell
• Ger yr Eglwys
• Glan-y-Mor
• Glasfryn
• Glen Road
• Gors Fach
• Gosport Street
• Heol Derw
• Heol Goi
• Heol Llaindelyn
• Heol Smyrna
• Heol Waun Saggard
• Heol y Bwt
• High Street
• Holloway Road

Check an address in SA33

Check an address in SA33

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SA33" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SA33

What does an SA33 postcode tell you?

That the address lies in the SA33 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 642 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 SA33

• SA319.1 km
• SA3412.3 km
• SA1714.9 km
• SA3616.6 km
• SA3219.1 km
• SA3721.2 km
• SA6621.3 km
• SA3821.3 km
• SA6721.4 km
• SA1621.8 km
• SA3923.2 km
• SA6923.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids