The civil parish of Overton covers 3,471 hectares - an area about seven miles north to south (from Polhampton to the A303) and two and a half miles east to west (Ashe Park Lodge to Southington Lodge at Laverstoke Park) and is located in the County of Hampshire. Most of Overton parish is entirely rural with the north of the parish being in the North Wessex Downs Area of Outstanding Natural Beauty.