| 5 May 2022 | Local Elections 2022 | Beechwood | Newport | The Labour Party | 1,113 | 23.1% | 1st | Yes |
| 4 May 2017 | Local Elections 2017 | Resolven | Neath Port Talbot | The Labour Party | 461 | 41.4% | 1st | Yes |
| 4 May 2017 | Local Elections 2017 | Beechwood | Newport | The Labour Party | 978 | 18% | 1st | Yes |
| 3 May 2012 | Local Elections 2012 | Beechwood | Newport | The Labour Party | 950 | 16.9% | 1st | Yes |
| 3 May 2012 | Local Elections 2012 | Resolven | Neath Port Talbot | The Labour Party | 729 | 72.4% | 1st | Yes |
| 4 June 2009 | Local Elections 2009 | Cuckfield & Lucastes | Mid Sussex | The Labour Party | 95 | 2.6% | 6th | No |
| 1 May 2008 | Local Elections 2008 | Resolven | Neath Port Talbot | The Labour Party | 611 | 56.6% | 1st | Yes |
| 1 May 2008 | Local Elections 2008 | Victoria | Newport | The Labour Party | 450 | 15% | 4th | No |
| 1 May 2008 | Local Elections 2008 | Cwm | Blaenau Gwent | The Labour Party | 439 | 17.8% | 3rd | No |
| 3 May 2007 | Local Elections 2007 | Haywards Heath Franklands | Mid Sussex | The Labour Party | 125 | 5.1% | 6th | No |
| 5 May 2005 | Local Elections 2005 | Cuckfield & Lucastes | Mid Sussex | The Labour Party | 423 | 8.5% | 3rd | No |
| 10 June 2004 | Local Elections 2004 | Cwm | Blaenau Gwent | The Labour Party | 839 | 33.9% | 2nd | Yes |
| 10 June 2004 | Local Elections 2004 | Resolven | Neath Port Talbot | The Labour Party | 729 | 71.1% | 1st | Yes |
| 1 May 2003 | Local Elections 2003 | Madeley | Telford & Wrekin | The Labour Party | 826 | 22.4% | 1st | No |
| 7 June 2001 | UK General Election 07 Jun 2001 | Llanelli | UK Parliamentary general election | The Labour Party | 17,586 | 48.6% | 1st | Yes |
| 6 May 1999 | Local Elections 1999 | Bargoed | Caerphilly | The Labour Party | 1,010 | 18.2% | 1st | No |
| 6 May 1999 | Local Elections 1999 | Cwm | Blaenau Gwent | The Labour Party | 955 | 34.7% | 1st | Yes |
| 6 May 1999 | Local Elections 1999 | Rassau | Blaenau Gwent | The Labour Party | 449 | 15.3% | 5th | No |
| 7 May 1998 | Local Elections 1998 | Knutsford Over | Macclesfield | The Labour Party | 473 | 42.7% | 2nd | No |
| 1 May 1997 | UK General Election 01 May 1997 | Llanelli | UK Parliamentary general election | The Labour Party | 28,851 | 62.4% | 1st | Yes |
| 4 May 1995 | Local Elections 1995 | Bargoed | Caerphilly | The Labour Party | 1,395 | 23.1% | 1st | No |
| 4 May 1995 | Local Elections 1995 | Cwmtillery | Blaenau Gwent | The Labour Party | 0 | — | 1st | Yes |
| 4 May 1995 | Local Elections 1995 | Cwm | Blaenau Gwent | The Labour Party | 1,157 | 42.9% | 1st | Yes |
| 5 May 1994 | Local Elections 1994 | Knutsford Over | Macclesfield | The Labour Party | 936 | 73.6% | 1st | Yes |
| 6 May 1993 | Local Elections 1993 | Knutsford | Macclesfield | The Labour Party | 1,461 | 30.8% | 2nd | No |
| 6 May 1993 | Local Elections 1993 | Resolven | Neath | The Labour Party | 1,406 | 79.2% | 1st | Yes |
| 9 April 1992 | UK General Election 09 Apr 1992 | Llanelli | UK Parliamentary general election | The Labour Party | 27,802 | 54.9% | 1st | Yes |
| 2 May 1991 | Local Elections 1991 | Cwmtillery | Blaenau Gwent | The Labour Party | 0 | — | 1st | No |
| 2 May 1991 | Local Elections 1991 | Cwm | Blaenau Gwent | The Labour Party | 0 | — | 1st | No |
| 2 May 1991 | Local Elections 1991 | Blaengwrach | Neath | The Labour Party | 0 | — | 1st | No |
| 2 May 1991 | Local Elections 1991 | Neath East | Neath | The Labour Party | 0 | — | 1st | No |
| 2 May 1991 | Local Elections 1991 | Cantref | Monmouth | The Labour Party | 420 | 13.9% | 5th | No |
| 3 May 1990 | Local Elections 1990 | Central | Ellesmere Port and Neston | The Labour Party | 1,516 | 89.2% | 1st | No |
| 3 May 1990 | Local Elections 1990 | Knutsford Over | Macclesfield | The Labour Party | 1,319 | 68.5% | 1st | No |
| 11 June 1987 | UK General Election 11 Jun 1987 | Llanelli | UK Parliamentary general election | The Labour Party | 29,506 | 59.2% | 1st | Yes |
| 8 May 1986 | Local Elections 1986 | Central | Ellesmere Port and Neston | The Labour Party | 936 | 82.4% | 1st | No |
| 9 June 1983 | UK General Election 09 Jun 1983 | Llanelli | UK Parliamentary general election | The Labour Party | 23,207 | 48.2% | 1st | Yes |
| 5 May 1983 | Local Elections 1983 | Blaengwrach | Neath | The Labour Party | 0 | — | 1st | Yes |
| 5 May 1983 | Local Elections 1983 | Ebbw Vale South Central & Cwm | Blaenau Gwent | The Labour Party | 1,409 | 19.3% | 2nd | No |
| 5 May 1983 | Local Elections 1983 | Ebbw Vale North Central | Blaenau Gwent | The Labour Party | 1,116 | 23.3% | 2nd | No |
| 6 May 1982 | Local Elections 1982 | Central | Ellesmere Port and Neston | The Labour Party | 810 | 69.1% | 1st | No |
| 6 May 1982 | Local Elections 1982 | Knutsford Nether | Macclesfield | The Labour Party | 126 | 14.6% | 3rd | No |
| 3 May 1979 | UK General Election 03 May 1979 | Llanelli | UK Parliamentary general election | The Labour Party | 30,416 | 59.5% | 1st | Yes |
| 3 May 1979 | Local Elections 1979 | Ebbw Vale South Central & Cwm | Blaenau Gwent | The Labour Party | 1,921 | 20.1% | 1st | No |
| 6 May 1976 | Local Elections 1976 | Ebbw Vale North Central | Blaenau Gwent | The Labour Party | 529 | 9.3% | 6th | No |
| 6 May 1976 | Local Elections 1976 | Central & Cwm | Blaenau Gwent | The Labour Party | 1,234 | 14.3% | 3rd | No |
| 6 May 1976 | Local Elections 1976 | Cadoxton | Neath | The Labour Party | 276 | 37.2% | 2nd | No |
| 28 February 1974 | UK General Election 28 Feb 1974 | Llanelli | UK Parliamentary general election | The Labour Party | 28,941 | 50.5% | 1st | Yes |
| 7 June 1973 | Local Elections 1973 | Knutsford Over | Macclesfield | The Labour Party | 1,117 | 41.4% | 1st | No |
| 10 May 1973 | Local Elections 10 May 1973 (metropolitan and Welsh districts) | Ebbw Vale South Central & Cwm | Blaenau Gwent | The Labour Party | 1,285 | 14.6% | 5th | No |
| 10 May 1973 | Local Elections 10 May 1973 (metropolitan and Welsh districts) | Cadoxton | Neath | The Labour Party | 336 | 55.2% | 1st | No |
| 18 June 1970 | UK General Election 18 Jun 1970 | Llanelli | UK Parliamentary general election | The Labour Party | 31,398 | 62.8% | 1st | Yes |
| 15 October 1964 | UK General Election 15 Oct 1964 | Cardigan | UK Parliamentary general election | The Labour Party | 9,281 | 31% | 2nd | No |
| 27 October 1931 | UK General Election 27 Oct 1931 | Pontypridd | UK Parliamentary general election | The Labour Party | 21,751 | 58.4% | 1st | Yes |
| 14 December 1918 | UK General Election 14 Dec 1918 | Pontypridd | UK Parliamentary general election | The Labour Party | 10,152 | 42.8% | 2nd | No |