Home Postcode finder NSW Neutral Bay Junction Neutral Bay Junction postcode NSW Neutral Bay Junction is a locality in New South Wales covered by postcode 2089. Postcode 2089 State or territory New South Wales (NSW) Region St Leonards Add a free Neutral Bay Junction business listing Be the first listing in Neutral Bay Junction Common questionsWhat is the postcode for Neutral Bay Junction?Neutral Bay Junction, NSW has the postcode 2089.What state is Neutral Bay Junction in?Neutral Bay Junction is in New South Wales (NSW).Does postcode 2089 cover more than one suburb?Yes. Postcode 2089 covers 3 localities, so the postcode alone does not identify Neutral Bay Junction. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.