Home Postcode finder TAS Guildford Guildford postcode TAS Guildford is a locality in Tasmania covered by postcode 7321. Postcode 7321 State or territory Tasmania (TAS) Region Tasmania Add a free Guildford business listing Be the first listing in Guildford Common questionsWhat is the postcode for Guildford?Guildford, TAS has the postcode 7321.What state is Guildford in?Guildford is in Tasmania (TAS).Does postcode 7321 cover more than one suburb?Yes. Postcode 7321 covers 35 localities, so the postcode alone does not identify Guildford. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.