# Ogmore (UK Parliament constituency)

Ogmore (Welsh: Ogwr) was a constituency created in 1918, represented in the House of Commons of the UK Parliament.
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 for the 2024 general election. Its wards were split between Aberafan Maesteg, Bridgend, Pontypridd, and Rhondda and Ogmore.

## Boundaries

1918–1983: The Urban Districts of Bridgend, Maesteg, Ogmore and Garw, as well as a part of the Rural District of Penybont.
1983–2010: The Borough of Ogwr wards of Bettws, Blackmill, Blaengarw, Caerau, Llangeinor, Llangynwyd, Maesteg East, Maesteg West, Nantyffyllon, Nant-y-moel, Ogmore Vale, Pencoed, Pontycymmer, St Bride's Minor, and Ynysawdre, and the Borough of Taff-Ely wards of Brynna, Gilfach Goch, Llanharan, and Llanharry.
2010–2024: The Bridgend County Borough electoral divisions of Aberkenfig, Bettws, Blackmill, Blaengarw, Bryncethin, Bryncoch, Caerau, Cefn Cribwr, Felindre, Hendre, Llangeinor, Llangynwyd, Maesteg East, Maesteg West, Nant-y-moel, Ogmore Vale, Penprysg, Pontycymmer, Sarn, and Ynysawdre, and those in Rhondda Cynon Taff County Borough of Brynna, Gilfach Goch, Llanharan, and Llanharry.
Taking its name from the River Ogmore, the constituency was close to the source of the river in the Ogwr valley, but it excluded the village of Ogmore-by-Sea, south-west of Bridgend (Pen-y-bont ar Ogwr). Ogmore constituency covered the area of Bridgend County Borough Council roughly north of the M4, and parts of Rhondda Cynon Taf County Borough Council. It included the communities of Cefn Cribwr, Garw Valley, Gilfach Goch, Llanharan, Maesteg, Ogwr Valley, Pencoed, Sarn, and Tondu.

### Major boundary change

A substantial change of boundaries took effect in 1983, when the new constituency of Bridgend was created, centred on the town of that name, which was by then the largest settlement in Ogmore. The constituency since that date consisted of the northern part of the original constituency, together with wards from the former Borough of Taff-Ely (now Rhondda Cynon Taf CBC).

## History
### Summary of winning results

The 2015 result made the seat the 44th-safest of Labour's 232 seats by percentage of majority. Successive candidates fielded by the Labour Party have won absolute majorities (pluralities) since the seat was created in 1918, or have run unopposed four times. The 2019 election was the first time in the seat's 101-year history that Labour failed to win an absolute majority, though the party still won with a margin of 22%

### Opposition parties

Four parties have taken the runner-up position from and including a 2002 by-election, a total of five elections. At the 2015 general election the Liberal Democrat, Green and TUSC candidates did not win 5% of the vote apiece therefore forfeited their deposits. Those running for the Conservatives and UKIP in 2015 (and 2016 at the by-election held during the month before the UK's EU membership referendum) held their deposits. The highest polling of any runner-up, by percentage, was Thomas George Jones in 1931, winning 30.8% of the votes cast, 0.3% more than half the percentage polled by the winning candidate; this was when the Labour Party's vote was slightly split by the presence of a prominent Communist Party candidate and editor, Johnny Campbell. The government's dropping of a prosecution against him in 1924 had led to a General Election.

### Turnout

Turnout at general elections has ranged between 85.3% in 1950 and 57.8% in 2005, falling to 35.2% in the 2002 by-election.

## Members of Parliament

| Election | Member | Party |
| 1918 | Vernon Hartshorn | Labour |
| 1931 by-election | Ted Williams | Labour |
| 1946 by-election | John Evans | Labour |
| 1950 | Walter Padley | Labour |
| 1979 | Sir Ray Powell | Labour |
| 2002 by-election | Huw Irranca-Davies | Labour |
| 2016 by-election | Chris Elmore | Labour |
| 2024 | Constituency abolished | Constituency abolished |

## Elections
### Elections in the 1910s

General election 1918: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Vernon Hartshorn | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 35,910 | | |
| | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) |

### Elections in the 1920s

General election 1922: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Vernon Hartshorn | 17,321 | 55.8 | N/A |
| | National Liberal | John Walter Jones | 7,498 | 24.1 | N/A |
| | Unionist | Dorothy Caroline Edmondes | 6,257 | 20.1 | N/A |
| Majority | Majority | Majority | 9,823 | 31.7 | N/A |
| Turnout | Turnout | Turnout | 31,076 | 78.3 | N/A |
| Registered electors | Registered electors | Registered electors | 39,673 | | |
| | Labour hold | Labour hold | Swing | N/A | |
General election 1923: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Vernon Hartshorn | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 40,284 | | |
| | Labour hold | Labour hold | Labour hold | Labour hold | Labour hold |
General election 1924: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Vernon Hartshorn | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 40,801 | | |
| | Labour hold | Labour hold | Labour hold | Labour hold | Labour hold |
General election 1929: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Vernon Hartshorn | 22,900 | 56.7 | N/A |
| | Liberal | Dapho Llewellyn Powell | 11,804 | 29.2 | N/A |
| | Unionist | H Abbott | 4,164 | 10.3 | N/A |
| | Communist | John Ross Campbell | 1,525 | 3.8 | N/A |
| Majority | Majority | Majority | 11,096 | 27.5 | N/A |
| Turnout | Turnout | Turnout | 40,393 | 82.8 | N/A |
| Registered electors | Registered electors | Registered electors | 48,786 | | |
| | Labour hold | Labour hold | Swing | N/A | |

### Elections in the 1930s

1931 Ogmore by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Edward Williams | 19,356 | 78.8 | +22.1 |
| | Communist | John Ross Campbell | 5,219 | 21.2 | +17.4 |
| Majority | Majority | Majority | 14,137 | 57.6 | +30.1 |
| Turnout | Turnout | Turnout | 24,575 | 50.8 | −32.0 |
| Registered electors | Registered electors | Registered electors | 48,406 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1931: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Edward Williams | 23,064 | 61.0 | +4.3 |
| | Conservative | Thomas George Jones | 11,653 | 30.8 | +20.5 |
| | Communist | John Ross Campbell | 3,099 | 8.2 | +4.4 |
| Majority | Majority | Majority | 11,411 | 30.2 | +2.7 |
| Turnout | Turnout | Turnout | 37,816 | 76.9 | −5.9 |
| Registered electors | Registered electors | Registered electors | 49,203 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1935: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Edward Williams | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 49,764 | | |
| | Labour hold | Labour hold | Labour hold | Labour hold | Labour hold |

### Elections in the 1940s

General election 1945: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Edward Williams | 32,715 | 76.4 | N/A |
| | National | Owen Glyndwr Davies | 7,712 | 18.0 | N/A |
| | Plaid Cymru | Trefor Richard Morgan | 2,379 | 5.6 | N/A |
| Majority | Majority | Majority | 25,003 | 58.4 | N/A |
| Turnout | Turnout | Turnout | 42,806 | 75.7 | N/A |
| Registered electors | Registered electors | Registered electors | 56,552 | | |
| | Labour hold | Labour hold | Swing | N/A | |
1946 Ogmore by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | John Evans | 13,632 | 70.6 | −5.8 |
| | Plaid Cymru | Trefor Richard Morgan | 5,685 | 29.4 | +23.8 |
| Majority | Majority | Majority | 7,947 | 41.2 | −17.2 |
| Turnout | Turnout | Turnout | 19,317 | 75.6 | −0.1 |
| Registered electors | Registered electors | Registered electors | 57,401 | | |
| | Labour hold | Labour hold | Swing | | |

### Elections in the 1950s

General election 1950: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 35,836 | 74.7 | −1.7 |
| | Conservative | Raymond Gower | 9,791 | 20.4 | N/A |
| | Communist | Mavis Llewellyn | 1,691 | 3.6 | N/A |
| | Welsh Republican Movement | Ithel Davies | 631 | 1.3 | N/A |
| Majority | Majority | Majority | 26,045 | 54.3 | −4.1 |
| Turnout | Turnout | Turnout | 47,949 | 85.3 | +9.6 |
| Registered electors | Registered electors | Registered electors | 56,184 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1951: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 37,022 | 76.9 | +2.2 |
| | Conservative | Percy Lunniss Powell | 9,504 | 19.7 | −0.7 |
| | British Empire Party | Trefor David | 1,643 | 3.4 | N/A |
| Majority | Majority | Majority | 27,518 | 57.2 | +2.9 |
| Turnout | Turnout | Turnout | 48,169 | 84.9 | −0.4 |
| Registered electors | Registered electors | Registered electors | 56,726 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1955: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 33,275 | 75.6 | −1.3 |
| | Conservative | Derek Geoffrey Jennings | 10,751 | 24.4 | +4.7 |
| Majority | Majority | Majority | 22,524 | 51.2 | −6.0 |
| Turnout | Turnout | Turnout | 44,026 | 78.6 | −6.3 |
| Registered electors | Registered electors | Registered electors | 55,976 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1959: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 35,170 | 74.7 | −0.9 |
| | Conservative | Tom O. Ewart-Jones | 11,905 | 25.3 | +0.9 |
| Majority | Majority | Majority | 23,265 | 49.4 | −1.8 |
| Turnout | Turnout | Turnout | 47,075 | 82.3 | +3.7 |
| Registered electors | Registered electors | Registered electors | 57,192 | | |
| | Labour hold | Labour hold | Swing | | |

### Elections in the 1960s

General election 1964: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 34,178 | 72.9 | −1.8 |
| | Conservative | Ralph Morgan Thomas | 10,238 | 21.8 | −3.5 |
| | Plaid Cymru | Margaret Tucker | 2,470 | 5.3 | N/A |
| Majority | Majority | Majority | 23,940 | 51.1 | +1.7 |
| Turnout | Turnout | Turnout | 46,886 | 79.7 | −2.6 |
| Registered electors | Registered electors | Registered electors | 58,848 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1966: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 33,545 | 71.3 | −1.6 |
| | Conservative | Ralph Morgan Thomas | 6,872 | 14.6 | −7.2 |
| | Liberal | Jennie Thomas Gibbs | 6,632 | 14.1 | N/A |
| Majority | Majority | Majority | 26,673 | 56.7 | +5.6 |
| Turnout | Turnout | Turnout | 47,049 | 78.4 | −1.3 |
| Registered electors | Registered electors | Registered electors | 60,003 | | |
| | Labour hold | Labour hold | Swing | | |

### Elections in the 1970s

General election 1970: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 33,436 | 67.3 | −4.0 |
| | Conservative | Antony F. Gardner | 10,415 | 21.0 | +6.4 |
| | Plaid Cymru | Edward John Merriman | 5,828 | 11.7 | N/A |
| Majority | Majority | Majority | 23,021 | 46.3 | −10.4 |
| Turnout | Turnout | Turnout | 49,679 | 75.6 | −2.8 |
| Registered electors | Registered electors | Registered electors | 65,731 | | |
| | Labour hold | Labour hold | Swing | | |
General election February 1974: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 28,372 | 52.8 | −14.5 |
| | Liberal | Jennie Gibbs | 10,819 | 20.1 | N/A |
| | Conservative | R K Jones | 9,416 | 17.5 | −3.5 |
| | Plaid Cymru | Edward John Merriman | 5,139 | 9.6 | −2.1 |
| Majority | Majority | Majority | 17,553 | 32.7 | −13.6 |
| Turnout | Turnout | Turnout | 53,746 | 79.8 | +4.2 |
| Registered electors | Registered electors | Registered electors | 67,354 | | |
| | Labour hold | Labour hold | Swing | | |
General election October 1974: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Walter Padley | 30,453 | 59.5 | +6.7 |
| | Conservative | R.K. Jones | 8,249 | 16.1 | −1.4 |
| | Liberal | Jennie Gibbs | 8,203 | 16.0 | −4.1 |
| | Plaid Cymru | D.I. Jones | 4,290 | 8.4 | −1.2 |
| Majority | Majority | Majority | 22,204 | 43.4 | +10.7 |
| Turnout | Turnout | Turnout | 51,195 | 75.4 | −4.4 |
| Registered electors | Registered electors | Registered electors | 67,927 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1979: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Ray Powell | 29,867 | 53.4 | −6.1 |
| | Conservative | L Walters | 13,780 | 24.6 | +8.5 |
| | Liberal | Jennie Gibbs | 9,812 | 17.5 | +1.5 |
| | Plaid Cymru | D I Jones | 2,450 | 4.4 | −4.0 |
| Majority | Majority | Majority | 16,087 | 28.8 | −14.6 |
| Turnout | Turnout | Turnout | 55,909 | 79.7 | +4.3 |
| Registered electors | Registered electors | Registered electors | 70,156 | | |
| | Labour hold | Labour hold | Swing | | |

### Elections in the 1980s

General election 1983: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Ray Powell | 23,390 | 59.2 | +5.8 |
| | Liberal | John Parsons | 6,026 | 15.3 | −2.2 |
| | Conservative | Richard O'Sullivan | 5,806 | 14.7 | −9.9 |
| | Plaid Cymru | Edward Merriman | 3,124 | 7.9 | +3.5 |
| | Ecology | Noel Thomas | 1,161 | 2.9 | N/A |
| Majority | Majority | Majority | 17,364 | 43.9 | +15.1 |
| Turnout | Turnout | Turnout | 39,507 | 76.9 | −2.8 |
| Registered electors | Registered electors | Registered electors | 51,378 | | |
| | Labour hold | Labour hold | Swing | | |
General election 1987: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Ray Powell | 28,462 | 69.4 | +10.2 |
| | Conservative | Michael Barratt | 6,170 | 15.0 | +0.3 |
| | SDP | Mairwen James | 3,954 | 9.6 | −5.7 |
| | Plaid Cymru | John Jones | 1,791 | 4.4 | −3.5 |
| | Independent Labour | Thomas Spence | 652 | 1.6 | N/A |
| Majority | Majority | Majority | 22,292 | 54.4 | +10.5 |
| Turnout | Turnout | Turnout | 41,029 | 80.1 | +3.2 |
| Registered electors | Registered electors | Registered electors | 51,255 | | |
| | Labour hold | Labour hold | Swing | | |

### Elections in the 1990s

General election 1992: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Ray Powell | 30,186 | 71.7 | +2.3 |
| | Conservative | David G. Edwards | 6,359 | 15.1 | +0.1 |
| | Liberal Democrats | John Warman | 2,868 | 6.8 | −2.8 |
| | Plaid Cymru | Laura McAllister | 2,667 | 6.3 | +1.9 |
| Majority | Majority | Majority | 23,827 | 56.6 | +2.2 |
| Turnout | Turnout | Turnout | 42,080 | 80.6 | +0.5 |
| Registered electors | Registered electors | Registered electors | 52,195 | | |
| | Labour hold | Labour hold | Swing | +1.1 | |
General election 1997: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Ray Powell | 28,163 | 74.0 | +2.3 |
| | Conservative | David A. Unwin | 3,716 | 9.8 | −5.3 |
| | Liberal Democrats | Kirsty Williams | 3,510 | 9.2 | +2.4 |
| | Plaid Cymru | John D. Rogers | 2,679 | 7.0 | +0.7 |
| Majority | Majority | Majority | 24,447 | 64.2 | +7.6 |
| Turnout | Turnout | Turnout | 38,068 | 72.9 | −7.7 |
| Registered electors | Registered electors | Registered electors | 52,193 | | |
| | Labour hold | Labour hold | Swing | +3.8 | |

### Elections in the 2000s

General election 2001: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Ray Powell | 18,833 | 62.0 | −12.0 |
| | Plaid Cymru | Angela Pulman | 4,259 | 14.0 | +7.0 |
| | Liberal Democrats | Ian Lewis | 3,878 | 12.8 | +3.6 |
| | Conservative | Richard Hill | 3,383 | 11.1 | +1.3 |
| Majority | Majority | Majority | 14,574 | 48.0 | −16.2 |
| Turnout | Turnout | Turnout | 30,353 | 58.2 | −14.7 |
| Registered electors | Registered electors | Registered electors | 52,185 | | |
| | Labour hold | Labour hold | Swing | −9.5 | |
2002 Ogmore by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Huw Irranca-Davies | 9,548 | 52.0 | −10.0 |
| | Plaid Cymru | Bleddyn Hancock | 3,827 | 20.8 | +6.8 |
| | Liberal Democrats | Veronica Watkins | 1,608 | 8.8 | −4.0 |
| | Conservative | Guto Bebb | 1,377 | 7.5 | −3.6 |
| | Socialist Labour | Christopher Herriot | 1,152 | 6.3 | N/A |
| | Green | Jonathan Spink | 250 | 1.4 | N/A |
| | Socialist Alliance | Jeffrey Hurford | 205 | 1.1 | N/A |
| | Monster Raving Loony | Leslie Edwards | 187 | 1.0 | N/A |
| | New Millennium Bean Party | Captain Beany | 122 | 0.7 | N/A |
| | Independent | David Braid | 100 | 0.3 | N/A |
| Majority | Majority | Majority | 5,721 | 31.2 | −16.8 |
| Turnout | Turnout | Turnout | 18,376 | 35.2 | −23.0 |
| Registered electors | Registered electors | Registered electors | 52,209 | | |
| | Labour hold | Labour hold | Swing | −8.4 | |
Following the death of Sir Ray Powell on 7 December 2001 a by-election was held on 14 February 2002.
General election 2005: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Huw Irranca-Davies | 18,295 | 60.4 | −1.6 |
| | Liberal Democrats | Jackie Radford | 4,592 | 15.2 | +2.4 |
| | Conservative | Norma Lloyd-Nesling | 4,243 | 14.0 | +2.9 |
| | Plaid Cymru | John Williams | 3,148 | 10.4 | −3.6 |
| Majority | Majority | Majority | 13,703 | 45.2 | −2.8 |
| Turnout | Turnout | Turnout | 30,278 | 57.8 | −0.4 |
| Registered electors | Registered electors | Registered electors | 52,349 | | |
| | Labour hold | Labour hold | Swing | −2.0 | |

### Elections in the 2010s

General election 2010: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Huw Irranca-Davies | 18,664 | 53.8 | −7.1 |
| | Conservative | Emma Moore | 5,398 | 15.6 | +1.4 |
| | Liberal Democrats | Jackie Radford | 5,260 | 15.2 | +0.5 |
| | Plaid Cymru | Danny Clark | 3,326 | 9.6 | −0.6 |
| | BNP | Kay Thomas | 1,242 | 3.6 | N/A |
| | UKIP | Carolyn Passey | 780 | 2.3 | N/A |
| Majority | Majority | Majority | 13,246 | 38.2 | −7.1 |
| Turnout | Turnout | Turnout | 34,650 | 62.4 | +2.9 |
| Registered electors | Registered electors | Registered electors | 55,527 | | |
| | Labour hold | Labour hold | Swing | −4.3 | |
General election 2015: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Huw Irranca-Davies | 18,663 | 52.9 | −0.9 |
| | Conservative | Jane March | 5,620 | 15.9 | +0.3 |
| | UKIP | Glenda Davies | 5,420 | 15.4 | +13.1 |
| | Plaid Cymru | Tim Thomas | 3,556 | 10.1 | +0.5 |
| | Liberal Democrats | Gerald Francis | 1,072 | 3.0 | −12.2 |
| | Green | Laurie Brophy | 754 | 2.1 | N/A |
| | TUSC | Emma Saunders | 165 | 0.5 | N/A |
| Rejected ballots | Rejected ballots | Rejected ballots | 72 | | |
| Majority | Majority | Majority | 13,043 | 37.0 | −1.2 |
| Turnout | Turnout | Turnout | 35,250 | 63.7 | +1.3 |
| Registered electors | Registered electors | Registered electors | 55,572 | | |
| | Labour hold | Labour hold | Swing | −0.6 | |
Of the 72 rejected ballots:
* 51 were either unmarked or it was uncertain who the vote was for.
* 21 voted for more than one candidate.
2016 Ogmore by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Chris Elmore | 12,383 | 52.6 | −0.3 |
| | UKIP | Glenda Davies | 3,808 | 16.2 | +0.8 |
| | Plaid Cymru | Abi Thomas | 3,683 | 15.7 | +5.6 |
| | Conservative | Alex Williams | 2,956 | 12.6 | −3.3 |
| | Liberal Democrats | Janet Ellard | 702 | 3.0 | ±0.0 |
| Majority | Majority | Majority | 8,575 | 36.4 | −0.6 |
| Turnout | Turnout | Turnout | 23,532 | 43.0 | −20.7 |
| Registered electors | Registered electors | Registered electors | 55,027 | | |
| | Labour hold | Labour hold | Swing | −0.8 | |
General election 2017: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Chris Elmore | 23,225 | 62.4 | +9.5 |
| | Conservative | Jamie Wallis | 9,354 | 25.1 | +9.2 |
| | Plaid Cymru | Huw Marshall | 2,796 | 7.5 | −2.6 |
| | UKIP | Glenda Davies | 1,235 | 3.3 | −12.1 |
| | Liberal Democrats | Gerald Francis | 594 | 1.6 | −1.4 |
| Rejected ballots | Rejected ballots | Rejected ballots | 55 | | |
| Majority | Majority | Majority | 13,871 | 37.3 | +0.3 |
| Turnout | Turnout | Turnout | 37,204 | 65.1 | +1.4 |
| Registered electors | Registered electors | Registered electors | 57,125 | | |
| | Labour hold | Labour hold | Swing | +0.2 | |
Of the 55 rejected ballots:
* 36 were either unmarked or it was uncertain who the vote was for.
* 19 voted for more than one candidate.
General election 2019: Ogmore :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Chris Elmore | 17,602 | 49.7 | −12.7 |
| | Conservative | Sadie Vidal | 9,797 | 27.7 | +2.6 |
| | Brexit Party | Christine Roach | 2,991 | 8.5 | N/A |
| | Plaid Cymru | Luke Fletcher | 2,919 | 8.3 | +0.8 |
| | Liberal Democrats | Anita Davies | 1,460 | 4.1 | +2.5 |
| | Green | Tom Muller | 621 | 1.8 | N/A |
| Rejected ballots | Rejected ballots | Rejected ballots | 96 | | |
| Majority | Majority | Majority | 7,805 | 22.0 | −15.3 |
| Turnout | Turnout | Turnout | 35,390 | 61.5 | −3.6 |
| Registered electors | Registered electors | Registered electors | 57,581 | | |
| | Labour hold | Labour hold | Swing | −7.6 | |
Of the 96 rejected ballots:
* 64 were either unmarked or it was uncertain who the vote was for.
* 32 voted for more than one candidate.