Ystradgynlais

Ystradgynlais
Junction at Heol Eglwys
Ystradgynlais Location within Powys
Population	8,092 (2011)[1]
OS grid reference	SN793106
Community	Ystradgynlais
Principal area	Powys
Preserved county	Powys
Country	Wales
Sovereign state	United Kingdom
Post town	Swansea
Postcode district	SA9
Dialling code	01639
Police	Dyfed-Powys
Fire	Mid and West Wales
Ambulance	Welsh
UK Parliament	Brecon, Radnor and Cwm Tawe
Senedd Cymru – Welsh Parliament	Brecon & Radnorshire
List of places UK Wales Powys 51°46′52″N 3°45′04″W / 51.78101°N 3.75107°W / 51.78101; -3.75107

Ystradgynlais (English: /ˌʌstrədˈɡʌnlaɪs/;^[2] Welsh: [ˌəstradˈɡənlais] ^ⓘ) in southwest Powys, Wales. It is located on the River Tawe, and was within the boundaries of the former county of Brecknockshire. The town has a high proportion of Welsh language-speakers. The community includes Cwmtwrch, Abercraf and Cwmgiedd, with a population of 8,092 in the 2011 census; it is the second-largest town in Powys. It forms part of the Swansea Urban Area^[3] where the Ystradgynlais subdivision has a population of 10,248.^[4]