Home Postcode finder NSW Biniguy Biniguy postcode NSW Biniguy is a locality in New South Wales covered by postcode 2399. Postcode 2399 State or territory New South Wales (NSW) Region NSW North Coast Add a free Biniguy business listing Be the first listing in Biniguy Common questionsWhat is the postcode for Biniguy?Biniguy, NSW has the postcode 2399.What state is Biniguy in?Biniguy is in New South Wales (NSW).Does postcode 2399 cover more than one suburb?Yes. Postcode 2399 covers 2 localities, so the postcode alone does not identify Biniguy. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.