South West Wales
region of Wales

South West Wales is one of the regions of Wales comprising the unitary authorities of Swansea, Neath Port Talbot, Carmarthenshire and Pembrokeshire.
Definition
This definition is used by a number of government agencies and private organisations including:
BBC
Welsh Government
South West Wales Economic Forum (SWWEF)
South West Wales Integrated Transport Consortium (SWWITCH)
South West Wales Tourism Partnership (SWWTP)
Travel About Britain
West Cheshire & North Wales Chamber of Commerce
A different definition is used in the EU Nomenclature of Territorial Units for Statistics, which refers to South West Wales as a subdivision of West Wales and the Valleys comprising Carmarthenshire, Ceredigion and Pembrokeshire.
History
The area that is now considered to be South West Wales was established as Deheubarth by Hywel Dda in around the year 920. Although not a kingdom per se, it was ruled dynastically and fought over for centuries, until the conquest of Wales by Edward I, completed in 1283, when it was divided into the historic counties that exist today.
Governance
South West Wales is made up of the four principal areas of Carmarthenshire, Neath Port Talbot, Pembrokeshire and Swansea.
The Swansea Bay City Region is a partnership between local authorities, businesses and other organisations.
In April 2021, a South West Wales Corporate Joint Committee was formed to allow the four local councils in the region to collaborate in areas relating to economic well-being, strategic planning and the development of regional transport policies.
Begin with the source’s own compact description: “South West Wales” is region of Wales. The dossier treats that line as a proposition to test through South, West and Wales, not as a finished interpretation.
Why this record matters
The phrase “region of Wales” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 16, 2025. The linked authority identifier is Q7568894. Authority coordinates are 51.800, -3.967. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1283 and 2021.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “South West Wales”, its source revision and the description used here.
- Expand the search: follow South West Wales primary sources, South West Wales archive and South research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “South West Wales”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “South West Wales” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.