Risca (Welsh: Rhisga) is a town of approximately 11,500 people in south-east Wales, within the Caerphilly County Borough and the historic boundaries of Monmouthshire. It is today part of the Newport conurbation (which as a whole has a population of 140,200), though it is not a Ward of Newport City Council. Risca has a railway station, opened on the Ebbw Valley Railway in February 2008, after a gap of 46 years.