Swallownest is a village in South Yorkshire, England.
It is situated within the S26 postcode district, which is within the Sheffield post town.
The full list of postcode districts within the Sheffield post town is as follows:
The Sheffield post town is within the Sheffield postcode area.
Administrative Ward: Rother Vale
Administrative District: Rotherham
Country: England
UK Parliament: Rother Valley
NHS Local Health Authority: Yorkshire and the Humber
NHS Region: North, Midlands and the East