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
Welsh language to under 50 per cent in Ceredigion and Carmarthenshire for the first time. However, according to the Welsh Language Use Survey in 2013–15, 24 per cent of people aged three and over were able to speak Welsh. In 2018 a survey by the ONS suggested 29.3 per cent of the population of Wales were able to speak the language. Historically, large numbers of Welsh people spoke only Welsh. Over the course of the 20th century this monolingual population "all but disappeared", but a small percentage remained at the time of the 1981 census. Most Welsh-speaking people in Wales also speak