Home Postcode finder QLD Goolboo Goolboo postcode QLD Goolboo is a locality in Queensland covered by postcode 4856. Postcode 4856 State or territory Queensland (QLD) Region North QLD Add a free Goolboo business listing Be the first listing in Goolboo Common questionsWhat is the postcode for Goolboo?Goolboo, QLD has the postcode 4856.What state is Goolboo in?Goolboo is in Queensland (QLD).Does postcode 4856 cover more than one suburb?Yes. Postcode 4856 covers 7 localities, so the postcode alone does not identify Goolboo. Browse other postcodes in Queensland, or widen the search to every Australian postcode.