Home Postcode finder QLD Mabuiag Island Mabuiag Island postcode QLD Mabuiag Island is a locality in Queensland covered by postcode 4875. Postcode 4875 State or territory Queensland (QLD) Region North QLD Add a free Mabuiag Island business listing Be the first listing in Mabuiag Island Common questionsWhat is the postcode for Mabuiag Island?Mabuiag Island, QLD has the postcode 4875.What state is Mabuiag Island in?Mabuiag Island is in Queensland (QLD).Does postcode 4875 cover more than one suburb?Yes. Postcode 4875 covers 17 localities, so the postcode alone does not identify Mabuiag Island. Browse other postcodes in Queensland, or widen the search to every Australian postcode.