Home Postcode finder NSW Dairy Flat Dairy Flat postcode NSW Dairy Flat is a locality in New South Wales covered by postcode 2474. Postcode 2474 State or territory New South Wales (NSW) Region NSW North Coast Add a free Dairy Flat business listing Be the first listing in Dairy Flat Common questionsWhat is the postcode for Dairy Flat?Dairy Flat, NSW has the postcode 2474.What state is Dairy Flat in?Dairy Flat is in New South Wales (NSW).Does postcode 2474 cover more than one suburb?Yes. Postcode 2474 covers 46 localities, so the postcode alone does not identify Dairy Flat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.