Home Postcode finder QLD Wellesley Islands Wellesley Islands postcode QLD Wellesley Islands is a locality in Queensland covered by postcode 4871. Postcode 4871 State or territory Queensland (QLD) Region North QLD Add a free Wellesley Islands business listing Be the first listing in Wellesley Islands Common questionsWhat is the postcode for Wellesley Islands?Wellesley Islands, QLD has the postcode 4871.What state is Wellesley Islands in?Wellesley Islands is in Queensland (QLD).Does postcode 4871 cover more than one suburb?Yes. Postcode 4871 covers 103 localities, so the postcode alone does not identify Wellesley Islands. Browse other postcodes in Queensland, or widen the search to every Australian postcode.