Home Postcode finder NSW Wandandian Wandandian postcode NSW Wandandian is a locality in New South Wales covered by postcode 2540. Postcode 2540 State or territory New South Wales (NSW) Region NSW Country West Add a free Wandandian business listing Be the first listing in Wandandian Common questionsWhat is the postcode for Wandandian?Wandandian, NSW has the postcode 2540.What state is Wandandian in?Wandandian is in New South Wales (NSW).Does postcode 2540 cover more than one suburb?Yes. Postcode 2540 covers 68 localities, so the postcode alone does not identify Wandandian. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.