Fonmon is a village in the Vale of Glamorgan, Wales.
It is situated within the CF62 postcode district, which is within the Barry post town.
The full list of postcode districts within the Barry post town is as follows:
The Barry post town is within the Cardiff postcode area.
Administrative Ward: Rhoose
Administrative District: The Vale of Glamorgan
Country: Wales
UK Parliament: Vale of Glamorgan