It is located about five miles southwest of Oswestry and close to the Welsh border.

The Offa's Dyke Path runs through the village.

The village also forms the terminus of the surviving stub of the former Potteries, Shrewsbury & North Wales Railway, better known as the 'Potts Line', which is currently being re-opened as a heritage railway by the Tanat Valley Light Railway Company.

Nantmawr has a nature reserve known as "Jones' Rough" managed by Shropshire Wildlife Trust.

It is a breeding place for the pearl-bordered fritillary butterfly.