Home Postcode finder WA Piawaning Piawaning postcode WA Piawaning is a locality in Western Australia covered by postcode 6572. Postcode 6572 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Piawaning business listing Be the first listing in Piawaning Common questionsWhat is the postcode for Piawaning?Piawaning, WA has the postcode 6572.What state is Piawaning in?Piawaning is in Western Australia (WA).Does postcode 6572 cover more than one suburb?No. Postcode 6572 covers Piawaning only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.