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Data Last Updated: 9 February 2025
Application Last Amended: 20 July 2024
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14 December 1918 | 23,739/34,778 | 68.26 | |
Liberal Party - Coalition | 13,327 | 56.14 | |
Labour Party | 10,152 | 42.77 | |
Conservative & Unionist Party | 260 | 1.10 | |
Majority | 3,175 | 13.37 | |
Arthur Seaton retired after nomination in favour of Thomas Lewis. | |||
July 1922 Resignation of Thomas Lewis on appointment as a Lord of the Treasury. | |||
25 July 1922 | 29,180/40,017 | 72.92 | |
Labour Party | 16,630 | 56.99 | |
Liberal Party - Coalition | 12,550 | 43.01 | |
Majority | 4,080 | 13.98 | |
Thomas Lewis resigns his post as a Junior Lord of the Treasury after the by-election. | |||
15 November 1922 | 31,545/41,087 | 76.78 | |
Labour Party | 14,884 | 47.18 | |
National Liberal Party | 8,667 | 27.48 | |
Conservative & Unionist Party | 7,994 | 25.34 | |
Majority | 6,217 | 19.71 | |
6 December 1923 | 30,676/40,379 | 75.97 | |
Labour Party | 16,837 | 54.89 | |
Liberal Party | 13,839 | 45.11 | |
Majority | 2,998 | 9.77 | |
29 October 1924 | 32,726/41,099 | 79.63 | |
Labour Party | 18,301 | 55.92 | |
Conservative & Unionist Party | 14,425 | 44.08 | |
Majority | 3,876 | 11.84 | |
30 May 1929 | 39,223/47,860 | 81.95 | |
Labour Party | 20,835 | 53.12 | |
Liberal Party | 14,421 | 36.77 | |
Conservative & Unionist Party | 3,967 | 10.11 | |
Majority | 6,414 | 16.35 | |
4 February 1931 Resignation of Thomas Mardy-Jones. (Northstead) | |||
19 March 1931 | 34,544/46,936 | 73.60 | |
Labour Party | 20,687 | 59.89 | |
Liberal Party | 8,368 | 24.22 | |
Conservative & Unionist Party | 5,489 | 15.89 | |
Majority | 12,319 | 35.66 | |
27 October 1931 | 37,264/47,346 | 78.71 | |
Labour Party | 21,751 | 58.37 | |
Liberal Party | 13,937 | 37.40 | |
Independent Labour | 1,110 | 2.98 | |
NP | 466 | 1.25 | |
Majority | 7,814 | 20.97 | |
14 November 1935 | 48,469 | ||
Labour Party | Unopposed |   | |
27 November 1937 Death of David Davies. | |||
11 February 1938 | 36,969/47,238 | 78.26 | |
Labour Party | 22,159 | 59.94 | |
National Liberal Party | 14,810 | 40.06 | |
Majority | 7,349 | 19.88 | |
5 July 1945 | 40,547/53,598 | 75.65 | |
Labour Party | 27,823 | 68.62 | |
Conservative & Unionist Party | 7,260 | 17.91 | |
Liberal Party | 5,464 | 13.48 | |
Majority | 20,563 | 50.71 | |
23 February 1950 | 44,389/53,275 | 83.32 | |
Labour Party | 30,945 | 69.71 | |
Conservative & Unionist Party | 9,049 | 20.39 | |
Liberal Party | 4,395 | 9.90 | |
Majority | 21,896 | 49.33 | |
25 October 1951 | 45,097/54,126 | 83.32 | |
Labour Party | 32,586 | 72.26 | |
Conservative & Unionist Party | 12,511 | 27.74 | |
Majority | 20,075 | 44.52 | |
26 May 1955 | 40,599/54,214 | 74.89 | |
Labour Party | 28,881 | 71.14 | |
Conservative & Unionist Party | 11,718 | 28.86 | |
Majority | 17,163 | 42.27 | |
8 October 1959 | 43,749/53,903 | 81.16 | |
Labour Party | 29,853 | 68.24 | |
Conservative & Unionist Party | 13,896 | 31.76 | |
Majority | 15,957 | 36.47 | |
15 October 1964 | 41,392/53,859 | 76.85 | |
Labour Party | 29,533 | 71.35 | |
Conservative & Unionist Party | 11,859 | 28.65 | |
Majority | 17,674 | 42.70 | |
31 March 1966 | 41,165/55,088 | 74.73 | |
Labour Party | 30,840 | 74.92 | |
Conservative & Unionist Party | 10,325 | 25.08 | |
Majority | 20,515 | 49.84 | |
18 June 1970 | 48,549/65,191 | 74.47 | |
Labour Party | 28,414 | 58.53 | |
Conservative & Unionist Party | 8,205 | 16.90 | |
Liberal Party | 6,871 | 14.15 | |
Plaid Cymru | 5,059 | 10.42 | |
Majority | 20,209 | 41.63 | |
28 February 1974 | 53,935/69,702 | 77.38 | |
Labour Party | 28,028 | 51.97 | |
Conservative & Unionist Party | 11,406 | 21.15 | |
Liberal Party | 9,889 | 18.34 | |
Plaid Cymru | 4,612 | 8.55 | |
Majority | 16,622 | 30.82 | |
10 October 1974 | 51,797/70,185 | 73.80 | |
Labour Party | 29,302 | 56.57 | |
Conservative & Unionist Party | 10,528 | 20.33 | |
Liberal Party | 8,050 | 15.54 | |
Plaid Cymru | 3,917 | 7.56 | |
Majority | 18,774 | 36.25 | |
3 May 1979 | 58,606/75,050 | 78.09 | |
Labour Party | 32,801 | 55.97 | |
Conservative & Unionist Party | 17,114 | 29.20 | |
Liberal Party | 6,228 | 10.63 | |
Plaid Cymru | 2,200 | 3.75 | |
National Front | 263 | 0.45 | |
Majority | 15,687 | 26.77 | |
Major Boundary Change | |||
9 June 1983 | 44,285/61,500 | 72.01 | |
Labour Party | 20,188 | 45.59 | |
Social Democratic Party in Alliance | 11,444 | 25.84 | |
Conservative & Unionist Party | 10,139 | 22.89 | |
Plaid Cymru | 2,065 | 4.66 | |
Ecology Party | 449 | 1.01 | |
Majority | 8,744 | 19.74 | |
11 June 1987 | 46,930/61,836 | 75.89 | |
Labour Party | 26,422 | 56.30 | |
Conservative & Unionist Party | 9,145 | 19.49 | |
Social Democratic Party in Alliance | 8,865 | 18.89 | |
Plaid Cymru | 2,498 | 5.32 | |
Majority | 17,277 | 36.81 | |
13 December 1988 Death of Brynmor John. | |||
23 February 1989 | 38,511/61,836 | 62.28 | |
Labour Party | 20,549 | 53.36 | |
Plaid Cymru | 9,755 | 25.33 | |
Conservative & Unionist Party | 5,212 | 13.53 | |
Liberal Democrats | 1,500 | 3.89 | |
Social Democratic Party | 1,199 | 3.11 | |
Communist Party | 239 | 0.62 | |
Independent | 57 | 0.15 | |
Majority | 10,794 | 28.03 | |
9 April 1992 | 48,890/61,685 | 79.26 | |
Labour Party | 29,722 | 60.79 | |
Conservative & Unionist Party | 9,925 | 20.30 | |
Plaid Cymru | 4,448 | 9.10 | |
Liberal Democrats | 4,180 | 8.55 | |
Green Party | 615 | 1.26 | |
Majority | 19,797 | 40.49 | |
1 May 1997 | 45,855/64,185 | 71.44 | |
Labour Party | 29,290 | 63.88 | |
Liberal Democrats | 6,161 | 13.44 | |
Conservative & Unionist Party | 5,910 | 12.89 | |
Plaid Cymru | 2,977 | 6.49 | |
Referendum Party | 874 | 1.91 | |
Socialist Labour | 380 | 0.83 | |
Communist Party of Great Britain | 178 | 0.39 | |
Natural Law Party | 85 | 0.19 | |
Majority | 23,129 | 50.44 | |
7 June 2001 | 38,309/66,105 | 57.95 | |
Labour Party | 22,963 | 59.94 | |
Plaid Cymru | 5,279 | 13.78 | |
Conservative & Unionist Party | 5,096 | 13.30 | |
Liberal Democrats | 4,152 | 10.84 | |
UK Independence Party | 603 | 1.57 | |
Pro-Life Alliance | 216 | 0.56 | |
Majority | 17,684 | 46.16 | |
5 May 2005 | 39,634/65,074 | 60.91 | |
Labour Party | 20,919 | 52.78 | |
Liberal Democrats | 7,728 | 19.50 | |
Conservative & Unionist Party | 5,321 | 13.43 | |
Plaid Cymru | 4,420 | 11.15 | |
UK Independence Party | 1,013 | 2.56 | |
Communist Party | 233 | 0.59 | |
Majority | 13,191 | 33.28 | |
Major Boundary Change | |||
6 May 2010 | 36,671/58,232 | 62.97 | |
Labour Party | 14,220 | 38.78 | |
Liberal Democrats | 11,435 | 31.18 | |
Conservative & Unionist Party | 5,932 | 16.18 | |
Plaid Cymru | 2,673 | 7.29 | |
UK Independence Party | 1,229 | 3.35 | |
Socialist Labour | 456 | 1.24 | |
Christian | 365 | 1.00 | |
Green Party | 361 | 0.98 | |
Majority | 2,785 | 7.59 | |
7 May 2015 | 37,832/58,929 | 64.20 | |
Labour Party | 15,554 | 41.11 | |
Conservative & Unionist Party | 6,569 | 17.36 | |
UK Independence Party | 5,085 | 13.44 | |
Liberal Democrats | 4,904 | 12.96 | |
Plaid Cymru | 4,348 | 11.49 | |
Green Party | 992 | 2.62 | |
Socialist Labour | 332 | 0.88 | |
Trades Union & Socialist Coalition | 48 | 0.13 | |
Majority | 8,985 | 23.75 | |
8 June 2017 | 39,894/60,564 | 65.87 | |
Labour Party | 22,103 | 55.40 | |
Conservative & Unionist Party | 10,655 | 26.71 | |
Plaid Cymru | 4,102 | 10.28 | |
Liberal Democrats | 1,963 | 4.92 | |
UK Independence Party | 1,071 | 2.68 | |
Majority | 11,448 | 28.70 | |
12 December 2019 | 39,060/60,327 | 64.75 | |
Labour Party | 17,381 | 44.50 | |
Conservative & Unionist Party | 11,494 | 29.43 | |
Plaid Cymru | 4,990 | 12.78 | |
Brexit Party | 2,917 | 7.47 | |
Independent | 1,792 | 4.59 | |
Independent | 337 | 0.86 | |
Independent | 149 | 0.38 | |
Majority | 5,887 | 15.07 | |
Major Boundary Change | |||
4 July 2024 | 39,378/75,951 | 51.85 | |
Labour Party | 16,225 | 41.20 | |
Reform UK | 7,823 | 19.87 | |
Plaid Cymru | 5,275 | 13.40 | |
Conservative & Unionist Party | 3,775 | 9.59 | |
Independent | 2,567 | 6.52 | |
Green Party | 1,865 | 4.74 | |
Liberal Democrats | 1,606 | 4.08 | |
Independent | 198 | 0.50 | |
Independent | 44 | 0.11 | |
Majority | 8,402 | 21.34 | |