UK Polling History: Election of 18 June 1970 – Rhondda West
Result summary
| Parties | ||||
| Labour | Plaid Cymru |
Conservative | Other | |
| Votes | 18,779 | 3,528 | 1,610 | 1,201 |
| Votes gained | +6,406 | -6,539 | +535 | -652 |
| Share of votes | 74.8% | 14.0% | 6.4% | 4.8% |
| Share of eligible voters | 60.9% | 11.5% | 5.2% | 3.9% |
| Gain in share of votes | +25.7% | -25.8% | +2.2% | -2.6% |
| Gain in share of eligible voters | +21.3% | -20.8% | +1.8% | -2.0% |
| Total votes: | 25,118 | |
| Electorate: | 30,811 | |
| Turnout: | 81.5% | |
| Outcome: | Labour hold | |
| Swing: | 25.8% | Labour from Plaid Cymru |
Polling history
List of contests
| Date | Type | Parties | |||||||
| Labour | Conservative | Plaid Cymru |
Liberal | Communist | Other | National | Others | ||
| Date | Type | Parties | |||||||
| Labour | Conservative | Plaid Cymru |
Liberal | Communist | Other | National | Others | ||
| 18 June 1970 | General Election | 18,779 | 1,610 | 3,528 | 1,201 | 0 | |||
| 9 March 1967 | By Election | 12,373 | 1,075 | 10,067 | 1,723 | ||||
| 31 March 1966 | General Election | 19,060 | 1,955 | 2,172 | 1,853 | 0 | |||
| 15 October 1964 | General Election | 20,713 | 2,754 | 2,668 | 0 | ||||
| 8 October 1959 | General Election | 21,130 | 3,242 | 4,978 | 0 | ||||
| 26 May 1955 | General Election | 21,288 | 3,134 | 4,424 | 0 | ||||
| 25 October 1951 | General Election | 26,123 | 3,635 | 2,467 | 0 | ||||
| 23 February 1950 | General Election | 27,150 | 3,632 | 2,183 | 0 | ||||
| 5 July 1945 | General Election | Uncontested | 0 | ||||||
| 14 November 1935 | General Election | Uncontested | 0 | ||||||
| 27 October 1931 | General Election | 23,024 | 4,296 | 0 | |||||
| 30 May 1929 | General Election | 23,238 | 3,210 | 9,247 | 0 | ||||
| 29 October 1924 | General Election | Uncontested | 0 | ||||||
| 6 December 1923 | General Election | 18,206 | 9,640 | 0 | |||||
| 15 November 1922 | General Election | 18,001 | 10,990 | 0 | |||||
| 14 December 1918 | General Election | Uncontested | 0 | ||||||