Ceredigion (UK Parliament constituency) towns which comprised the Boroughs varied slightly over this long period, but primarily consisted of Cardigan, Aberystwyth, Lampeter and Adpar, the latter now a suburb of Newcastle Emlyn across the Teifi, in Carmarthenshire. The county constituency (for the purposes of type of returning officer and electoral expenses) was enlarged in 1983 with the addition of part of Pembrokeshire, being renamed Ceredigion and Pembroke North. In 1997 it reverted to its former boundaries, being renamed Ceredigion. The Ceredigion Welsh Assembly constituency was created with the same boundaries in 1999. Since 2017 the seat has been held in Parliament by Ben Lake
Ceredigion (Assembly constituency) 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. Ceredigion (Assembly constituency) Ceredigion is a constituency of the National Assembly for Wales. It elects one Assembly Member by the first past the post method of election. It is also one of eight constituencies in the Mid and West Wales electoral region, which elects four additional members, in addition to eight constituency members, to produce a degree of proportional representation for the region as a whole. It has been represented since its creation in 1999