Home Postcode finder NSW Maitland Vale Maitland Vale postcode NSW Maitland Vale is a locality in New South Wales covered by postcode 2320. Postcode 2320 State or territory New South Wales (NSW) Region Hunter Add a free Maitland Vale business listing Be the first listing in Maitland Vale Common questionsWhat is the postcode for Maitland Vale?Maitland Vale, NSW has the postcode 2320.What state is Maitland Vale in?Maitland Vale is in New South Wales (NSW).Does postcode 2320 cover more than one suburb?Yes. Postcode 2320 covers 30 localities, so the postcode alone does not identify Maitland Vale. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.