Home Postcode finder NSW The Basin The Basin postcode NSW The Basin is a locality in New South Wales covered by postcode 2365. Postcode 2365 State or territory New South Wales (NSW) Region NSW North Coast Add a free The Basin business listing Be the first listing in The Basin Common questionsWhat is the postcode for The Basin?The Basin, NSW has the postcode 2365.What state is The Basin in?The Basin is in New South Wales (NSW).Does postcode 2365 cover more than one suburb?Yes. Postcode 2365 covers 26 localities, so the postcode alone does not identify The Basin. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.