Sir Gaerfyrddin (Welsh for 'Carmarthenshire'; ⓘ) is a six-member constituency of the Senedd (Welsh Parliament; Welsh: Senedd Cymru) used in the 2026 Senedd election. It covers Carmarthenshire in West Wales.
| Sir Gaerfyrddin | |
|---|---|
| County multi-member constituency for the Senedd | |
 Boundary of Sir Gaerfyrddin in Wales | |
| Principal areas | |
| Preserved county | |
| Population | 190,800 (2024)[1] |
| Major settlements | Ammanford, Burry Port, Carmarthen, Kidwelly, Laugharne, Llandovery, Llanelli |
| Current County multi-member constituency | |
| Created | 2026 |
| Seats | 6 |
| Created from |
|
It was proposed following the 2026 review of Senedd constituencies, and is a pairing of the two UK Parliament constituencies of Caerfyrddin and Llanelli. It has a Welsh-only name.
Boundaries
editThe borders of the constituency are the same as those of the county of Carmarthenshire.
A Senedd constituency comprising the boundaries of the UK Parliament constituencies of Caerfyrddin and Llanelli, has been proposed by the Democracy and Boundary Commission Cymru for the 2026 election to the Senedd (Welsh Parliament; Senedd Cymru). It was initially proposed using the English name Carmarthenshire in September 2024,[2] but was renamed to Sir Gâr in December proposals with most constituencies using Welsh-only names.[3] It was then given the Welsh-only name Sir Gaerfyrddin and its boundaries were confirmed in the commission's final recommendations in March 2025.[4] When announcing their candidates, Reform UK used "Caerfyrddin, Llanelli" instead, using the names for the pair of UK Parliament constituencies that form it.[5]
The constituency was established in 2026, following the passing of the Senedd Cymru (Members and Elections) Act 2024. The act legislates electoral reform of the Senedd to create 16 larger "super constituencies", pairing the 32 UK Parliament constituencies in Wales, and using a new fully proportional voting system, with each constituency electing six Members of the Senedd (MSs) rather than one previously.[2]
Members of the Senedd
edit| Term | Election | Distribution | MS | MS | MS | MS | MS | MS | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7th | 2026 |
|
Cefin Campbell (PC) |
Gareth Beer (Ref) |
Nerys Evans (PC) |
Carmelo Colasanto (Ref) |
Adam Price (PC) |
Sarah Edwards (Ref) | ||||||||
Elections
editElections in the 2020s
edit| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Plaid Cymru | Cefin Campbell (E) Nerys Evans (E) Adam Price (E) Mari Arthur Iwan Griffiths Abi Thomas Taylor Reynolds Jordan Griffiths |
36,160 | 43.1 |  9.5 | |
| Reform | Gareth Beer (E)[6] Carmelo Colasanto (E) Sarah Edwards (E) Christopher Brooke Alan Cole Michelle Beer |
27,542 | 32.8 | 31.7 | |
| Labour | Calum Higgins[7] Dawn Evans Martyn Palfreman David Darkin Lewis Davies Andre McPherson |
6,458 | 7.7 |  25.0 | |
| Green | Rob James Nick Pearce Craig Davies David Lishman Helen Draper Michael Willis |
3,832 | 4.6 | 1.1 | |
| Liberal Democrats | Justin Griffiths[8] Julian Tandy Jon Burree Lynne Wilkins Monica French Caryl Tandy Maggie Robinson |
1,662 | 2.0 | 0.1 | |
| Independent | Stephen Williams | 1,298 | 1.5 | 1.5 | |
| Heritage | Jason Barker | 496 | 0.6 | 0.6 | |
| Gwlad | Wayne Erasmus | 327 | 0.4 | 0.3 | |
| Independent | Carl Peters-Bond | 254 | 0.3 | 0.3 | |
| Independent | Jonathan Rose[a] | 101 | 0.1 | 0.1 | |
| Majority | 8,618 | 10.3 | New | ||
| Turnout | 83,983 | 55.8 | 2.8 | ||
| Registered electors | 150,481 | ||||
| 2021 notional result [b] | ||||
|---|---|---|---|---|
| Party | Vote | % | Seats | |
| Labour | 26,572 | 34.8 | 3 | |
| Plaid Cymru | 26,208 | 34.3 | 2 | |
| Conservative | 17,273 | 22.6 | 1 | |
| Liberal Democrats | 2,079 | 2.7 | 0 | |
| Reform UK | 1,663 | 2.2 | 0 | |
| UKIP | 1,122 | 1.5 | 0 | |
| Independent | 894 | 1.2 | 0 | |
| Gwlad | 544 | 0.7 | 0 | |
Notes
edit- ↑ was a member of the Official Monster Raving Loony Party on registration of candidacy date
- ↑ Estimate of the 2021 Senedd election result as if the revised boundaries recommended under the 2026 boundary review were in place
References
edit- ↑ "Data for the Senedd Cymru constituency areas: 2026". gov.wales. 20 March 2026. Retrieved 19 April 2026.
- 1 2 Hayward, Will (2 September 2024). "The full details of Wales' 16 new constituencies for Senedd elections". Wales Online. Retrieved 28 February 2025.
- ↑ "Proposed Senedd constituency names divides opinion". ITV News. 17 December 2024.
- ↑ Price, Emily (11 March 2025). "New Senedd 'super constituencies' confirmed". Nation.Cymru. Retrieved 11 March 2025.
- ↑ Mosalski, Ruth (25 March 2026). "Reform UK got the names of all the new Senedd constituencies wrong". Wales Online. Retrieved 26 March 2026.
- ↑ "Reform UK publishes full list of candidates for Wales' Senedd election". Wales Online. Retrieved 25 March 2026.
- ↑ Green, Daniel (2 December 2025). "Senedd elections 2026: Who are Welsh Labour's candidates?". Labour List. Retrieved 3 December 2025.
- ↑ "Sir Gaerfyrddin". Welsh Liberal Democrats. Retrieved 6 January 2026.