Home Postcode finder NSW Ganbenang Ganbenang postcode NSW Ganbenang is a locality in New South Wales covered by postcode 2790. Postcode 2790 State or territory New South Wales (NSW) Region NSW Country West Add a free Ganbenang business listing Be the first listing in Ganbenang Common questionsWhat is the postcode for Ganbenang?Ganbenang, NSW has the postcode 2790.What state is Ganbenang in?Ganbenang is in New South Wales (NSW).Does postcode 2790 cover more than one suburb?Yes. Postcode 2790 covers 40 localities, so the postcode alone does not identify Ganbenang. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.