Home Postcode finder NSW Redbank Redbank postcode NSW Redbank is a locality in New South Wales covered by postcode 2446. Postcode 2446 State or territory New South Wales (NSW) Region NSW North Coast Add a free Redbank business listing Be the first listing in Redbank Common questionsWhat is the postcode for Redbank?Redbank, NSW has the postcode 2446.What state is Redbank in?Redbank is in New South Wales (NSW).Does postcode 2446 cover more than one suburb?Yes. Postcode 2446 covers 41 localities, so the postcode alone does not identify Redbank. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.