Home Postcode finder NSW Quandialla Quandialla postcode NSW Quandialla is a locality in New South Wales covered by postcode 2721. Postcode 2721 State or territory New South Wales (NSW) Region Canberra Add a free Quandialla business listing More business listings in Quandialla Businesses in QuandiallaQuandialla Central SchoolThird St · 02 63471207 Common questionsWhat is the postcode for Quandialla?Quandialla, NSW has the postcode 2721.What state is Quandialla in?Quandialla is in New South Wales (NSW).Does postcode 2721 cover more than one suburb?Yes. Postcode 2721 covers 2 localities, so the postcode alone does not identify Quandialla. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.