Plaid Cymru General elections
| General election | Constituencies contested | Votes | Constituencies won |
| 4 July 2024 | 32 | 194,811 | 4 |
| 12 December 2019 | 36 | 153,265 | 4 |
| 8 June 2017 | 40 | 164,466 | 4 |
| 7 May 2015 | 40 | 181,704 | 3 |
| 6 May 2010 | 40 | 165,394 | 3 |
| General election | Constituencies contested | Votes | Constituencies won |
| 4 July 2024 | 32 | 194,811 | 4 |
| 12 December 2019 | 36 | 153,265 | 4 |
| 8 June 2017 | 40 | 164,466 | 4 |
| 7 May 2015 | 40 | 181,704 | 3 |
| 6 May 2010 | 40 | 165,394 | 3 |