Home Postcode finder NSW Tantonan Tantonan postcode NSW Tantonan is a locality in New South Wales covered by postcode 2731. Postcode 2731 State or territory New South Wales (NSW) Region Vic Far Country Add a free Tantonan business listing Be the first listing in Tantonan Common questionsWhat is the postcode for Tantonan?Tantonan, NSW has the postcode 2731.What state is Tantonan in?Tantonan is in New South Wales (NSW).Does postcode 2731 cover more than one suburb?Yes. Postcode 2731 covers 5 localities, so the postcode alone does not identify Tantonan. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.