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