riana postcode tasst Home ›› Postcode Finder ›› TASST ›› Riana Riana local listingsThe suburb of Riana is located in TAS and has a postcode of 7316. Free riana business listing! 1Riana Primary School1227 Pine Rd 03 64376130 View more business listings in riana Search and find other Postcodes in Tasmania or widen the search to Postcodes in Australia.