Perham Down is a village in Wiltshire, England.
It is situated within the SP11 postcode district, which is within the Andover post town.
The full list of postcode districts within the Andover post town is as follows:
The Andover post town is within the Salisbury postcode area.
Administrative Ward: Ludgershall and Perham Down
Administrative District: Wiltshire
Country: England
UK Parliament: Devizes
NHS Local Health Authority: South West
NHS Region: Southern