Whaddon is a village in Cambridgeshire, England.
It is situated within the SG8 postcode district, which is within the Royston post town.
SG8 is the only postcode district within the Royston post town.
The Royston post town is within the Stevenage postcode area.
Administrative Ward: Bassingbourn
Administrative District: South Cambridgeshire
Administrative County: Cambridgeshire
Country: England
UK Parliament: South Cambridgeshire
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East