Home Postcode finder NSW Back Forest Back Forest postcode NSW Back Forest is a locality in New South Wales covered by postcode 2535. Postcode 2535 State or territory New South Wales (NSW) Region NSW Country West Add a free Back Forest business listing Be the first listing in Back Forest Common questionsWhat is the postcode for Back Forest?Back Forest, NSW has the postcode 2535.What state is Back Forest in?Back Forest is in New South Wales (NSW).Does postcode 2535 cover more than one suburb?Yes. Postcode 2535 covers 15 localities, so the postcode alone does not identify Back Forest. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.