Coelbren is a village in Powys, Wales.
It is situated within the SA10 postcode district, which is within the Neath post town.
The full list of postcode districts within the Neath post town is as follows:
The Neath post town is within the Swansea postcode area.
Administrative Ward: Tawe-Uchaf
Administrative District: Powys
Country: Wales
UK Parliament: Brecon and Radnorshire