Home Postcode finder NSW Bannaby Bannaby postcode NSW Bannaby is a locality in New South Wales covered by postcode 2580. Postcode 2580 State or territory New South Wales (NSW) Region Canberra Add a free Bannaby business listing Be the first listing in Bannaby Common questionsWhat is the postcode for Bannaby?Bannaby, NSW has the postcode 2580.What state is Bannaby in?Bannaby is in New South Wales (NSW).Does postcode 2580 cover more than one suburb?Yes. Postcode 2580 covers 44 localities, so the postcode alone does not identify Bannaby. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.