Home Postcode finder NSW Middle Brother Middle Brother postcode NSW Middle Brother is a locality in New South Wales covered by postcode 2443. Postcode 2443 State or territory New South Wales (NSW) Region NSW North Coast Add a free Middle Brother business listing Be the first listing in Middle Brother Common questionsWhat is the postcode for Middle Brother?Middle Brother, NSW has the postcode 2443.What state is Middle Brother in?Middle Brother is in New South Wales (NSW).Does postcode 2443 cover more than one suburb?Yes. Postcode 2443 covers 19 localities, so the postcode alone does not identify Middle Brother. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.