Grasby is a village in Lincolnshire, England.
It is situated within the DN38 postcode district, which is within the Barnetby post town.
DN38 is the only postcode district within the Barnetby post town.
The Barnetby post town is within the Doncaster postcode area.
Administrative Ward: Kelsey
Administrative District: West Lindsey
Administrative County: Lincolnshire
Country: England
UK Parliament: Gainsborough
NHS Local Health Authority: East Midlands
NHS Region: North, Midlands and the East