Home Postcode finder NSW Millie Millie postcode NSW Millie is a locality in New South Wales covered by postcode 2397. Postcode 2397 State or territory New South Wales (NSW) Region NSW North Coast Add a free Millie business listing Be the first listing in Millie Common questionsWhat is the postcode for Millie?Millie, NSW has the postcode 2397.What state is Millie in?Millie is in New South Wales (NSW).Does postcode 2397 cover more than one suburb?Yes. Postcode 2397 covers 2 localities, so the postcode alone does not identify Millie. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.