Home Postcode finder NSW Hernani Hernani postcode NSW Hernani is a locality in New South Wales covered by postcode 2453. Postcode 2453 State or territory New South Wales (NSW) Region NSW North Coast Add a free Hernani business listing Be the first listing in Hernani Common questionsWhat is the postcode for Hernani?Hernani, NSW has the postcode 2453.What state is Hernani in?Hernani is in New South Wales (NSW).Does postcode 2453 cover more than one suburb?Yes. Postcode 2453 covers 20 localities, so the postcode alone does not identify Hernani. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.