Ystrad Mynach

Ystrad Mynach
Ystrad Mynach Location within Caerphilly
Population	19,204 (2011 census)[1]
OS grid reference	ST145945
Principal area	Caerphilly
Preserved county	Gwent
Country	Wales
Sovereign state	United Kingdom
Post town	HENGOED
Postcode district	CF82
Dialling code	01443
Police	Gwent
Fire	South Wales
Ambulance	Welsh
UK Parliament	Caerphilly
Senedd Cymru – Welsh Parliament	Caerphilly
List of places UK Wales Caerphilly 51°38′31″N 3°14′26″W / 51.6419°N 3.2405°W / 51.6419; -3.2405

Ystrad Mynach is a town in the Caerphilly County Borough, within the ancient county of Glamorgan, Wales, and is 5 mi (8.0 km) north of the town of Caerphilly. The urban area has a population of 19,204, and stands in the Rhymney Valley. Before the Industrial Revolution and the coming of coal mining in the South Wales Coalfield the valley was rural and farmed. It lies in the community of Gelligaer.