Home Postcode finder TAS Macquarie Plains Macquarie Plains postcode TAS Macquarie Plains is a locality in Tasmania covered by postcode 7140. Postcode 7140 State or territory Tasmania (TAS) Region Tasmania Add a free Macquarie Plains business listing Be the first listing in Macquarie Plains Common questionsWhat is the postcode for Macquarie Plains?Macquarie Plains, TAS has the postcode 7140.What state is Macquarie Plains in?Macquarie Plains is in Tasmania (TAS).Does postcode 7140 cover more than one suburb?Yes. Postcode 7140 covers 48 localities, so the postcode alone does not identify Macquarie Plains. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.