Mountain Ash is a community (and also previous area) in the Cynon Valley, within the Region District of Rhondda Cynon Taf, Wales. At the 2001 census, Mountain Ash had a population of 7,039 raising to 7,374 at the 2011 Census. The Mountain Ash geographical location includes and also includes the districts and towns of Cefnpennar, Cwmpennar, Caegarw, Darranlas, Fernhill, Glenboi and also Newtown. Mountain Ash lies within the historical county limits of Glamorgan. The community exists concerning 4.5 miles southern of the community of Aberdare and also roughly 19 miles northwest of Cardiff. The village and also community of Penrhiwceiber lies around a mile south of Mountain Ash. From a management perspective, Mountain Ash is split into 2 electoral wards: Mountain Ash West takes into account the town centre, together with the districts of Miskin, Darranlas, Fernhill as well as Glenboi; Mountain Ash East comprises the staying areas of Cefnpennar, Cwmpennar, Caegarw and Newtown.