Ranby is a village in Nottinghamshire, England.
It is situated within the DN22 postcode district, which is within the Retford post town.
DN22 is the only postcode district within the Retford post town.
The Retford post town is within the Doncaster postcode area.
Administrative Ward: Sutton
Administrative District: Bassetlaw
Administrative County: Nottinghamshire
Country: England
UK Parliament: Bassetlaw
NHS Local Health Authority: East Midlands
NHS Region: North, Midlands and the East