Home Postcode finder NSW Oxley Island Oxley Island postcode NSW Oxley Island is a locality in New South Wales covered by postcode 2430. Postcode 2430 State or territory New South Wales (NSW) Region Hunter Add a free Oxley Island business listing More business listings in Oxley Island Businesses in Oxley IslandOxley Island Public SchoolThe Horsley Drive · 02 65532466 Common questionsWhat is the postcode for Oxley Island?Oxley Island, NSW has the postcode 2430.What state is Oxley Island in?Oxley Island is in New South Wales (NSW).Does postcode 2430 cover more than one suburb?Yes. Postcode 2430 covers 39 localities, so the postcode alone does not identify Oxley Island. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.