# Carmarthen East and Dinefwr (UK Parliament constituency)

Carmarthen East and Dinefwr (Welsh: Dwyrain Caerfyrddin a Dinefwr) was a constituency of the House of Commons of the Parliament of the United Kingdom last represented since 2010 by Jonathan Edwards of Plaid Cymru. It elected one Member of Parliament (MP) by the first past the post system of election. It was created in 1997, mostly from the former seat of Carmarthen.
The Carmarthen East and Dinefwr Senedd constituency was created with the same boundaries in 1999 (as an Assembly constituency).
The constituency was abolished as part of the 2023 Periodic Review of Westminster constituencies and under the June 2023 final recommendations of the Boundary Commission for Wales. Its wards were divided between Caerfyrddin (Carmarthen) and Llanelli.

## Boundaries

The constituency was within the Carmarthenshire authority area, with Llanybydder, Llandovery and Llanfihangel-ar-Arth in the north, Llanfihangel-uwch-Gwili, Llanegwad, and Llandeilo in the central area, and Ammanford and Glanamman in the south.
Boundary changes for the 2010 general election introduced minor alterations, with the areas around Hermon and Llanpumsaint removed to the Carmarthen West and South Pembrokeshire constituency. These changes came into effect in 2007 for the National Assembly for Wales.
The constituency includes the whole of 41 Carmarthenshire communities (Abergwili; Ammanford; Betws; Cenarth; Cilycwm; Cwmamman; Cynwyl Gaeo; Dyffryn Cennen; Gorslas; Llanarthney; Llanddarog; Llanddeusant; Llandeilo; Llandovery; Llandybie; Llandyfaelog; Llanegwad; Llanfair-ar-y-bryn; Llanfihangel Aberbythych; Llanfihangel-ar-Arth; Llanfihangel Rhos-y-Corn; Llanfynydd; Llangadog; Llangathen; Llangeler; Llangunnor; Llangyndeyrn; Llanllawddog; Llanllwni; Llansadwrn; Llansawel; Llanwrda; Llanybydder; Llanycrwys; Manordeilo and Salem; Myddfai; Newcastle Emlyn; Pencarreg; Quarter Bach; St Ishmael; Talley).

## Members of Parliament

| Election | Member | Party |
| 1997 | Alan Williams | Labour |
| 2001 | Adam Price | Plaid Cymru |
| 2010 | Jonathan Edwards | Plaid Cymru |
| 2020 | Jonathan Edwards | Independent |
| 2024 | Constituency abolished |

## Elections
### Elections in the 1990s

General election 1997: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Alan Williams | 17,907 | 42.9 | N/A |
| | Plaid Cymru | Rhodri Glyn Thomas | 14,457 | 34.6 | N/A |
| | Conservative | Edmund Hayward | 5,022 | 12.0 | N/A |
| | Liberal Democrats | Juliana Hughes | 3,150 | 7.5 | N/A |
| | Referendum | Ian Humphreys-Evans | 1,196 | 2.9 | N/A |
| Majority | Majority | Majority | 3,450 | 8.3 | N/A |
| Turnout | Turnout | Turnout | 32,654 | 78.6 | N/A |
| Registered electors | Registered electors | Registered electors | 53,121 | | |
| | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) |

### Elections in the 2000s

General election 2001: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Plaid Cymru | Adam Price | 16,130 | 42.4 | +7.8 |
| | Labour | Alan Williams | 13,540 | 35.6 | −7.3 |
| | Conservative | David Thomas | 4,912 | 12.9 | +0.9 |
| | Liberal Democrats | Doiran Evans | 2,815 | 7.4 | −0.1 |
| | UKIP | Michael Squires | 656 | 1.7 | N/A |
| Majority | Majority | Majority | 2,590 | 6.8 | N/A |
| Turnout | Turnout | Turnout | 38,053 | 70.4 | −8.2 |
| Registered electors | Registered electors | Registered electors | 54,035 | | |
| | Plaid Cymru gain from Labour | Plaid Cymru gain from Labour | Swing | +7.5 | |
General election 2005: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Plaid Cymru | Adam Price | 17,561 | 45.9 | +3.5 |
| | Labour | Ross Hendry | 10,843 | 28.3 | −7.3 |
| | Conservative | Suzy Davies | 5,235 | 13.7 | +0.8 |
| | Liberal Democrats | Juliana Hughes | 3,719 | 9.7 | +2.3 |
| | UKIP | Mike Squires | 661 | 1.7 | ±0.0 |
| | Legalise Cannabis | Sid Whitworth | 272 | 0.7 | N/A |
| Majority | Majority | Majority | 6,718 | 17.6 | +10.8 |
| Turnout | Turnout | Turnout | 38,291 | 71.6 | +1.2 |
| Registered electors | Registered electors | Registered electors | 53,091 | | |
| | Plaid Cymru hold | Plaid Cymru hold | Swing | +5.4 | |

### Elections in the 2010s

General election 2010: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Plaid Cymru | Jonathan Edwards | 13,546 | 35.6 | −10.2 |
| | Labour | Christine Gwyther | 10,065 | 26.5 | −1.8 |
| | Conservative | Andrew Morgan | 8,506 | 22.4 | +8.7 |
| | Liberal Democrats | William Powell | 4,609 | 12.1 | +2.4 |
| | UKIP | John Atkinson | 1,285 | 3.4 | +1.7 |
| Majority | Majority | Majority | 3,481 | 9.1 | −8.3 |
| Turnout | Turnout | Turnout | 38,011 | 72.6 | +1.8 |
| Registered electors | Registered electors | Registered electors | 52,385 | | |
| | Plaid Cymru hold | Plaid Cymru hold | Swing | -4.2 | |
General election 2015: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Plaid Cymru | Jonathan Edwards | 15,140 | 38.4 | +2.8 |
| | Labour | Calum Higgins | 9,541 | 24.2 | −2.3 |
| | Conservative | Matthew Paul | 8,336 | 21.2 | −1.2 |
| | UKIP | Norma Woodward | 4,363 | 11.1 | +7.7 |
| | Green | Ben Rice | 1,091 | 2.8 | N/A |
| | Liberal Democrats | Sara Lloyd Williams | 928 | 2.4 | −9.7 |
| Majority | Majority | Majority | 5,599 | 14.2 | +5.1 |
| Turnout | Turnout | Turnout | 39,399 | 70.9 | −1.7 |
| Registered electors | Registered electors | Registered electors | 55,750 | | |
| | Plaid Cymru hold | Plaid Cymru hold | Swing | +2.5 | |
General election 2017: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Plaid Cymru | Jonathan Edwards | 16,127 | 39.3 | +0.9 |
| | Labour | David Darkin | 12,219 | 29.8 | +5.6 |
| | Conservative | Havard Hughes | 10,778 | 26.3 | +5.1 |
| | UKIP | Neil Hamilton | 985 | 2.4 | −8.7 |
| | Liberal Democrats | Lesley Prosser | 920 | 2.2 | −0.2 |
| Rejected ballots | Rejected ballots | Rejected ballots | 65 | | |
| Majority | Majority | Majority | 3,908 | 9.5 | −4.7 |
| Turnout | Turnout | Turnout | 41,029 | 73.3 | +2.4 |
| Registered electors | Registered electors | Registered electors | 56,711 | | |
| | Plaid Cymru hold | Plaid Cymru hold | Swing | -2.3 | |
Of the 65 rejected ballots:
* 44 were either unmarked or it was uncertain who the vote was for.
* 14 voted for more than one candidate.
* 7 had writing or a mark by which the voter could be identified.
General election 2019: Carmarthen East and Dinefwr :
| Party | Party | Candidate | Votes | % | ±% |
| | Plaid Cymru | Jonathan Edwards | 15,939 | 38.9 | −0.4 |
| | Conservative | Havard Hughes | 14,130 | 34.5 | +8.2 |
| | Labour | Maria Carroll | 8,622 | 21.0 | −8.8 |
| | Brexit Party | Peter Prosser | 2,311 | 5.6 | N/A |
| Rejected ballots | Rejected ballots | Rejected ballots | 145 | | |
| Majority | Majority | Majority | 1,809 | 4.4 | −5.1 |
| Turnout | Turnout | Turnout | 41,002 | 71.4 | −1.9 |
| Registered electors | Registered electors | Registered electors | 57,407 | | |
| | Plaid Cymru hold | Plaid Cymru hold | Swing | -4.3 | |
Of the 145 rejected ballots:
* 123 were either unmarked or it was uncertain who the vote was for.
* 20 voted for more than one candidate.
* 2 had writing or a mark by which the voter could be identified.
Edwards was elected as a Plaid Cymru MP, but had the whip withdrawn by the party after he was arrested on suspicion of assault in May 2020.