SA11 postcode district

Postcodes and sectors

989 of the district's 1,277 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 51.67488, -3.76135, which locates the district, not a building.

Companies registered in SA11

Companies House lists 1,252 companies with a registered office in SA11; 161 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 SA11

• Wales
• Castell-nedd Port Talbot
• Neath Port Talbot
• Neath
• Castell-nedd
• Briton Ferry
• Llansawel
• Glyn-neath
• Glyn-nedd
• Resolfen
• Resolven
• Tonna
• Powys
• Cwmgwrach
• Melincourt
• Pontneddfechan
• Blaengwrach
• Clyne
• Abergarwed
• Pentreclwydau
• Rhondda Cynon Taf

Roads filed under SA11

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.

• Aberdare Road
• Abermellte Court
• Addison Road
• Addoldy Road
• Afan Valley Close
• Afan Valley Road
• Alder Road
• Alexander Road
• Alford Road
• Alfred Street
• Alice Street
• Allister Street
• Angel Square
• Angel Street
• Arthur Street
• Ash Grove
• Ashmere Drive
• Aspen Way
• Avon Street
• Awrt Abermellte
• Bank Side
• Beacons View
• Beechwood Avenue
• Bethania Street
• Bethel Road
• Bethel Street
• Bilton Road
• Bowden Road
• Bowen Street
• Bracken Road
• Brickyard Cottages
• Bridge Street
• Briton Ferry Road
• Brodawel
• Brook Court
• Brookdale Street
• Brunel Close
• Brunel Way
• Bryn-Dedwydd
• Brynau Wood
• Bryn Awel
• Brynawelon
• Brynhyfryd
• Brynhyfryd Road
• Bryn Nedd
• Bryn Road
• Brynsiriol
• Brynteg
• Bryn Terrace
• Bryn y Broch
• Burnside
• Burrows Road
• Bwlch Crescent
• Bwlch Road
• Caederwen Road
• Caegwenith Close
• Cae Rhys Ddu Road
• Canal Place
• Canal Road
• Carlyle Street

Check an address in SA11

Check an address in SA11

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SA11" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SA11

What does an SA11 postcode tell you?

That the address lies in the SA11 district of the SA (Swansea) postcode area, and the place OS Open Names most often lists first for its postcodes is Neath. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 989 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 SA11

• SA103.1 km
• SA127.8 km
• SA87.9 km
• SA138.1 km
• SA78.8 km
• CF3410.4 km
• SA611.1 km
• SA911.9 km
• SA113.5 km
• SA514.8 km
• CF4216.4 km
• CF3317.2 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids