Merthyr Mawr is a village in Bridgend County Borough, Wales.
It is situated within the CF32 postcode district, which is within the Bridgend post town.
The full list of postcode districts within the Bridgend post town is as follows:
The Bridgend post town is within the Cardiff postcode area.
Administrative Ward: Bryntirion, Laleston and Merthyr Mawr
Administrative District: Bridgend
Country: Wales
UK Parliament: Bridgend