Tydd St Mary is a village in Lincolnshire, England.
It is situated within the PE13 postcode district, which is within the Wisbech post town.
The full list of postcode districts within the Wisbech post town is as follows:
The Wisbech post town is within the Peterborough postcode area.
Administrative Ward: Long Sutton
Administrative District: South Holland
Administrative County: Lincolnshire
Country: England
UK Parliament: South Holland and The Deepings
NHS Local Health Authority: East Midlands
NHS Region: North, Midlands and the East