UK general elections › 2017 › Arfon
Arfon — 2017
Hywel Williams (Plaid Cymru) was elected with 11,519 votes— 40.8% of 28,208 valid votes. Under First Past the Post, a plurality is enough; a majority is not required.
Result · single-seat
Marginal winner Winning candidate's share of valid votes. 40.8% Proportional quota 50.0% Below quota Winning candidate's share minus the proportional quota (50% for a single-member seat). Negative = below; positive = above. −9.2 pts Valid ballots Voters who cast a valid ballot in this constituency, from the published source. 28,208
| 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 | Hywel Williams | Plaid Cymru | 11,519 | 40.8% | −9.2 pts | Elected |
| 2 | Mary Griffiths Clarke | Labour Party | 11,427 | 40.5% | — | |
| 3 | Phillippa Parry | Conservative Party | 4,614 | 16.4% | — | |
| 4 | Calum Davies | Liberal Democrats | 648 | 2.3% | — |
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.