Down St Mary is a village in Devon, England.
It is situated within the EX17 postcode district, which is within the Crediton post town.
EX17 is the only postcode district within the Crediton post town.
The Crediton post town is within the Exeter postcode area.
Administrative Ward: Taw
Administrative District: Mid Devon
Administrative County: Devon
Country: England
UK Parliament: Central Devon
NHS Local Health Authority: South West
NHS Region: Southern