The constituency of Wrexham is divided into the electoral divisions: Acton, Borras Park, Brynyffynnon, Cartrefle, Erddig, Garden Village, Gresford East and West, Grosvenor, Gwersyllt East and South, Gwersyllt North, Gwersyllt West, Hermitage, Holt, Little Acton, Llay, Maesydre, Marford and Hoseley, Offa, Queensway, Rhosnesni, Rossett, Smithfield, Stansty, Whitegate, Wynnstay
In general elections for the National Assembly for Wales, each voter has two votes. The first vote may be used to vote for a candidate to become the Assembly Member for the voter's constituency, elected by the first past the post system. The second vote may be used to vote for a regional closed party list of candidates. Additional member seats are allocated from the lists by the d'Hondt method, with constituency results being taken into account in the allocation.