Home Postcode finder QLD South Wellesley Islands South Wellesley Islands postcode QLD South Wellesley Islands is a locality in Queensland covered by postcode 4871. Postcode 4871 State or territory Queensland (QLD) Region North QLD Add a free South Wellesley Islands business listing Be the first listing in South Wellesley Islands Common questionsWhat is the postcode for South Wellesley Islands?South Wellesley Islands, QLD has the postcode 4871.What state is South Wellesley Islands in?South 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 South Wellesley Islands. Browse other postcodes in Queensland, or widen the search to every Australian postcode.