westerway postcode tasst Home ›› Postcode Finder ›› TASST ›› Westerway Westerway local listingsThe suburb of Westerway is located in TAS and has a postcode of 7140. Free westerway business listing! 1Westerway Primary SchoolDobson Hwy 03 62881110 View more business listings in westerway Search and find other Postcodes in Tasmania or widen the search to Postcodes in Australia.