Balby is a village in South Yorkshire, England.
It is situated within the DN4 postcode district, which is within the Doncaster post town.
The full list of postcode districts within the Doncaster post town is as follows:
The Doncaster post town is within the Doncaster postcode area.
Administrative Ward: Balby
Administrative District: Doncaster
Country: England
UK Parliament: Doncaster Central
NHS Local Health Authority: Yorkshire and the Humber
NHS Region: North, Midlands and the East