Newcastle is a village in Monmouthshire, Wales.

It is situated within the NP25 postcode district, which is within the Monmouth post town.

NP25 is the only postcode district within the Monmouth post town.

The Monmouth post town is within the Newport postcode area.


Key data for Newcastle, Monmouthshire:

Administrative Ward: Llantilio Crossenny

Administrative District: Monmouthshire

Country: Wales

UK Parliament: Monmouth

A map showing the location of Newcastle, Monmouthshire within the NP25 postcode district