Home Postcode finder QLD Malling Malling postcode QLD Malling is a locality in Queensland covered by postcode 4352. Postcode 4352 State or territory Queensland (QLD) Region Toowoomba Region Add a free Malling business listing Be the first listing in Malling Common questionsWhat is the postcode for Malling?Malling, QLD has the postcode 4352.What state is Malling in?Malling is in Queensland (QLD).Does postcode 4352 cover more than one suburb?Yes. Postcode 4352 covers 71 localities, so the postcode alone does not identify Malling. Browse other postcodes in Queensland, or widen the search to every Australian postcode.