Welshpool is a market town and community in Powys, Wales, historically in the county of Montgomeryshire. The town is four miles from the W…Welshpool is a market town and community in Powys, Wales, historically in the county of Montgomeryshire. The town is four miles from the Wales–England border and low-lying on the River Severn. The community, which also includes Cloddiau and Pool Quay, has a population of 6,664, with the town having 5,948. There are many examples of Georgian architecture within the town. Powis Castle is located to the north.