Winterborne St Martin is a village in Dorset, England.
It is situated within the DT2 postcode district, which is within the Dorchester post town.
The full list of postcode districts within the Dorchester post town is as follows:
The Dorchester post town is within the Dorchester postcode area.
Administrative Ward: Winterborne St Martin
Administrative District: West Dorset
Administrative County: Dorset
Country: England
UK Parliament: West Dorset
NHS Local Health Authority: South West
NHS Region: Southern