Home Postcode finder TAS Riana Riana postcode TAS Riana is a locality in Tasmania covered by postcode 7316. Postcode 7316 State or territory Tasmania (TAS) Region Tasmania Add a free Riana business listing More business listings in Riana Businesses in RianaRiana Primary School1227 Pine Rd · 03 64376130 Common questionsWhat is the postcode for Riana?Riana, TAS has the postcode 7316.What state is Riana in?Riana is in Tasmania (TAS).Does postcode 7316 cover more than one suburb?Yes. Postcode 7316 covers 11 localities, so the postcode alone does not identify Riana. Browse other postcodes in Tasmania, or widen the search to every Australian postcode.