Oldcastle is a village in Monmouthshire, Wales.

It is situated within the NP7 postcode district .

The NP7 postcode district lies within the following post towns:

The NP7 postcode district is within the Newport" postcode area.


Key data for Oldcastle, Monmouthshire:

Administrative Ward: Crucorney

Administrative District: Monmouthshire

Country: Wales

UK Parliament: Monmouth

A map showing the location of Oldcastle, Monmouthshire within the NP7 postcode district