Caston is a village in Norfolk, England.
It is situated within the NR17 postcode district, which is within the Attleborough post town.
NR17 is the only postcode district within the Attleborough post town.
The Attleborough post town is within the Norwich postcode area.
Administrative Ward: Templar
Administrative District: Breckland
Administrative County: Norfolk
Country: England
UK Parliament: Mid Norfolk
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East