Penrhyn-coch is a small Welsh village, in the community of Trefeurig, Ceredigion, located between the Afon Stewi and Nant Seilo rivers, close to where they merge into the Afon Clarach. The village is approximately 4 1⁄2 miles (7.2 km) north-east of Aberystwyth.The village has expanded since the 1970s with several housing estates being built. There are around 480 houses and an estimated population of 1,037 (2005).