Home Postcode finder NSW Bannister Bannister postcode NSW Bannister 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 Bannister business listing Be the first listing in Bannister Common questionsWhat is the postcode for Bannister?Bannister, NSW has the postcode 2580.What state is Bannister in?Bannister 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 Bannister. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.