Home Postcode finder QLD Garradunga Garradunga postcode QLD Garradunga is a locality in Queensland covered by postcode 4860. Postcode 4860 State or territory Queensland (QLD) Region North QLD Add a free Garradunga business listing Be the first listing in Garradunga Common questionsWhat is the postcode for Garradunga?Garradunga, QLD has the postcode 4860.What state is Garradunga in?Garradunga is in Queensland (QLD).Does postcode 4860 cover more than one suburb?Yes. Postcode 4860 covers 37 localities, so the postcode alone does not identify Garradunga. Browse other postcodes in Queensland, or widen the search to every Australian postcode.