UK general elections › 2017 › Cynon Valley
Cynon Valley — 2017
Ann Clwyd (Labour Party) was elected with 19,404 votes— 61.0% of 31,802 valid votes.
Result · single-seat
Marginal winner Winning candidate's share of valid votes. 61.0% Proportional quota 50.0% Below quota Winning candidate's share minus the proportional quota (50% for a single-member seat). Negative = below; positive = above. +11.0 pts Valid ballots Voters who cast a valid ballot in this constituency, from the published source. 31,802
| Rank | Candidate | Party | Votes | Share of votes Candidate votes ÷ valid votes in this constituency. Matches the share the returning officer publishes. | Below quota Elected candidate's share of valid votes minus the proportional quota (50% for a single-member seat). Negative = won the seat below the quota; positive = cleared it. | Elected |
|---|---|---|---|---|---|---|
| 1 | Ann Clwyd | Labour Party | 19,404 | 61.0% | +11.0 pts | Elected |
| 2 | Keith Dewhurst | Conservative Party | 6,166 | 19.4% | — | |
| 3 | Liz Walters | Plaid Cymru | 4,376 | 13.8% | — | |
| 4 | Ian McLean | UK Independence Party | 1,271 | 4.0% | — | |
| 5 | Nicola Knight | Liberal Democrats | 585 | 1.8% | — |
Source data: UK Parliament psephology database, retrieved
2026-05-19, generated
2026-05-19
(Open Parliament Licence v3.0). ETL version parliament-etl-psephology@1. Methodology: how these numbers are computed.