Home Postcode finder NSW Hay South Hay South postcode NSW Hay South is a locality in New South Wales covered by postcode 2711. Postcode 2711 State or territory New South Wales (NSW) Region Canberra Add a free Hay South business listing Be the first listing in Hay South Common questionsWhat is the postcode for Hay South?Hay South, NSW has the postcode 2711.What state is Hay South in?Hay South is in New South Wales (NSW).Does postcode 2711 cover more than one suburb?Yes. Postcode 2711 covers 13 localities, so the postcode alone does not identify Hay South. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.