Home Postcode finder NSW Dalmeny Dalmeny postcode NSW Dalmeny is a locality in New South Wales covered by postcode 2546. Postcode 2546 State or territory New South Wales (NSW) Region NSW Country West Add a free Dalmeny business listing Be the first listing in Dalmeny Common questionsWhat is the postcode for Dalmeny?Dalmeny, NSW has the postcode 2546.What state is Dalmeny in?Dalmeny is in New South Wales (NSW).Does postcode 2546 cover more than one suburb?Yes. Postcode 2546 covers 17 localities, so the postcode alone does not identify Dalmeny. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.