Keyston is a village in Cambridgeshire, England.
It is situated within the PE28 postcode district, which is within the Huntingdon post town.
The full list of postcode districts within the Huntingdon post town is as follows:
The Huntingdon post town is within the Peterborough postcode area.
Administrative Ward: Ellington
Administrative District: Huntingdonshire
Administrative County: Cambridgeshire
Country: England
UK Parliament: North West Cambridgeshire
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East