Hafodyrynys is a village in Caerphilly county borough, Wales.
It is situated within the NP11 postcode district, which is within the Newport post town.
The full list of postcode districts within the Newport post town is as follows:
The Newport post town is within the Newport postcode area.
Administrative Ward: Crumlin
Administrative District: Caerphilly
Country: Wales
UK Parliament: Blaenau Gwent