Marshfield is a village in South Gloucestershire, England.
It is situated within the SN14 postcode district, which is within the Chippenham post town.
The full list of postcode districts within the Chippenham post town is as follows:
The Chippenham post town is within the Swindon postcode area.
Administrative Ward: Boyd Valley
Administrative District: South Gloucestershire
Country: England
UK Parliament: Thornbury and Yate
NHS Local Health Authority: South West
NHS Region: Southern