Home Postcode finder NSW Corunna Corunna postcode NSW Corunna 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 Corunna business listing Be the first listing in Corunna Common questionsWhat is the postcode for Corunna?Corunna, NSW has the postcode 2546.What state is Corunna in?Corunna 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 Corunna. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.