Home Postcode finder WA Viveash Viveash postcode WA Viveash is a locality in Western Australia covered by postcode 6056. Postcode 6056 State or territory Western Australia (WA) Region North West Suburbs Add a free Viveash business listing More business listings in Viveash Businesses in ViveashLa Salle CollegeLa Salle Ave · 08 92746266 Common questionsWhat is the postcode for Viveash?Viveash, WA has the postcode 6056.What state is Viveash in?Viveash is in Western Australia (WA).Does postcode 6056 cover more than one suburb?Yes. Postcode 6056 covers 17 localities, so the postcode alone does not identify Viveash. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.