Week St Mary is a village in Cornwall, England.
It is situated within the EX22 postcode district, which is within the Holsworthy post town.
EX22 is the only postcode district within the Holsworthy post town.
The Holsworthy post town is within the Exeter postcode area.
Administrative Ward: Poundstock
Administrative District: Cornwall
Country: England
UK Parliament: North Cornwall
NHS Local Health Authority: South West
NHS Region: Southern