Home Postcode finder QLD Badu Island Badu Island postcode QLD Badu Island is a locality in Queensland covered by postcode 4875. Postcode 4875 State or territory Queensland (QLD) Region North QLD Add a free Badu Island business listing Be the first listing in Badu Island Common questionsWhat is the postcode for Badu Island?Badu Island, QLD has the postcode 4875.What state is Badu Island in?Badu 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 Badu Island. Browse other postcodes in Queensland, or widen the search to every Australian postcode.