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