Wales, February 1974 vs October 1974: seat-by-seat change
Every constituency in Wales compared between the February 1974 and October 1974 general elections: which seats changed hands and how far each swung.
| Constituency | February 1974 | October 1974 | Majority | Con–Lab swing |
|---|---|---|---|---|
| Aberavon | Lab | Lab | 46.0% | +1.7 |
| Aberdare | Lab | Lab | 42.0% | +2.2 |
| Abertillery | Lab | Lab | 66.9% | +3.3 |
| Anglesey | Lab | Lab | 17.8% | +0.7 |
| Barry | Con | Con | 5.3% | +2.2 |
| Bedwellty | Lab | Lab | 59.1% | +2.3 |
| Brecon and Radnor | Lab | Lab | 6.8% | +0.9 |
| Caernarvon | PC | PC | 8.4% | +1.3 |
| Caerphilly | Lab | Lab | 32.1% | +0.8 |
| Cardiff North | Con | Con | 6.2% | +2.5 |
| Cardiff North West | Con | Con | 12.5% | +2.2 |
| Cardiff South East | Lab | Lab | 26.4% | +4.7 |
| Cardiff West | Lab | Lab | 18.4% | +4.8 |
| Cardigan | Lib | Lib | 7.0% | +2.9 |
| Carmarthen | Lab | PC gain | 7.0% | +5.1 |
| Conway | Con | Con | 7.1% | +1.9 |
| Denbigh | Con | Con | 9.4% | +1.8 |
| Ebbw Vale | Lab | Lab | 63.0% | +2.4 |
| Gower | Lab | Lab | 37.0% | +1.8 |
| Llanelli | Lab | Lab | 45.0% | +2.1 |
| Merioneth | PC | PC | 11.5% | +1.4 |
| Merthyr Tydfil | Lab | Lab | 55.9% | +3.1 |
| Monmouth | Con | Con | 3.9% | +1.7 |
| Neath | Lab | Lab | 43.5% | +2.0 |
| Newport | Lab | Lab | 24.4% | +2.7 |
| Ogmore | Lab | Lab | 43.4% | +4.1 |
| Pembroke | Con | Con | 1.4% | +0.6 |
| Pontypool | Lab | Lab | 46.7% | +2.4 |
| Pontypridd | Lab | Lab | 36.3% | +2.7 |
| Rhondda | Lab | Lab | 68.8% | +3.4 |
| Swansea East | Lab | Lab | 49.5% | +1.9 |
| Swansea West | Lab | Lab | 9.9% | +1.7 |
| Wrexham | Lab | Lab | 29.0% | +3.6 |
Official results House of Commons Library and UK Parliament election results data. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. How we use this data