Home Postcode finder QLD Wallu Wallu postcode QLD Wallu is a locality in Queensland covered by postcode 4570. Postcode 4570 State or territory Queensland (QLD) Region Sunshine Coast Add a free Wallu business listing Be the first listing in Wallu Common questionsWhat is the postcode for Wallu?Wallu, QLD has the postcode 4570.What state is Wallu in?Wallu is in Queensland (QLD).Does postcode 4570 cover more than one suburb?Yes. Postcode 4570 covers 85 localities, so the postcode alone does not identify Wallu. Browse other postcodes in Queensland, or widen the search to every Australian postcode.