Arfon was a constituency of the Senedd. It was created for the former Assembly's 2007 election. It elected one Member of the Senedd by the first past the post method of election. Also, however, it was one of nine constituencies in the North Wales electoral region, which elects four additional members, in addition to nine constituency members, to produce a degree of proportional representation for the region as a whole.
Contents
Boundaries
The constituency had the boundaries of the Arfon Westminster constituency prior to the 2023 review of Westminster constituencies, entirely within the preserved county of Gwynedd. The new constituency merged areas currently within the Caernarfon constituency and the Conwy constituency. The Caernarfon constituency was entirely within the preserved county of Gwynedd. The Conwy constituency was partly a Gwynedd constituency and partly within the preserved county of Clwyd.
The North Wales region was created for the first Assembly election, in 1999. For the 2007 election, however, it had new boundaries. It included the constituencies of Aberconwy, Alyn and Deeside, Arfon, Clwyd South, Clwyd West, Delyn, Vale of Clwyd, Wrexham and Ynys Môn.
Voting
In general elections for the Senedd, each voter had two votes. The first vote was used to vote for a candidate to become the Member of the Senedd for the voter's constituency, elected by the first past the post system. The second vote was used to vote for a regional closed party list of candidates. Additional member seats were allocated from the lists by the d'Hondt method, with constituency results being taken into account in the allocation.
Elections
Elections in the 2010s
Regional ballots rejected: 139