Tregynon is a small village and community in Montgomeryshire, Powys, Wales, to the north of Newtown and south west of Welshpool. The population of the community was 892 at the 2011 Census. It rests on the B4389 road which runs from Bettws Cedewain to New Mills. The country house Gregynog is nearby.

Newtown is a town in Powys, Wales. It lies on the River Severn in the community of Newtown and Llanllwchaiarn, within the historic boundaries of Montgomeryshire. It was designated a new town in 1967 and saw population growth as firms settled, changing its market town character. Its 2001 population of 10,780 rose to 11,357 in the 2011 census, and rose again to 11,362 in the 2021 census.