Thirlby is a village in North Yorkshire, England.
It is situated within the YO7 postcode district, which is within the Thirsk post town.
YO7 is the only postcode district within the Thirsk post town.
The Thirsk post town is within the York postcode area.
Administrative Ward: Whitestonecliffe
Administrative District: Hambleton
Administrative County: North Yorkshire
Country: England
UK Parliament: Thirsk and Malton
NHS Local Health Authority: Yorkshire and the Humber
NHS Region: North, Midlands and the East