Home Postcode finder QLD Heron Island Heron Island postcode QLD Heron Island is a locality in Queensland covered by postcode 4680. Postcode 4680 State or territory Queensland (QLD) Region Central QLD Add a free Heron Island business listing Be the first listing in Heron Island Common questionsWhat is the postcode for Heron Island?Heron Island, QLD has the postcode 4680.What state is Heron Island in?Heron Island is in Queensland (QLD).Does postcode 4680 cover more than one suburb?Yes. Postcode 4680 covers 41 localities, so the postcode alone does not identify Heron Island. Browse other postcodes in Queensland, or widen the search to every Australian postcode.