Home Postcode finder NSW Mount Warning Mount Warning postcode NSW Mount Warning is a locality in New South Wales covered by postcode 2484. Postcode 2484 State or territory New South Wales (NSW) Region Gold Coast Add a free Mount Warning business listing Be the first listing in Mount Warning Common questionsWhat is the postcode for Mount Warning?Mount Warning, NSW has the postcode 2484.What state is Mount Warning in?Mount Warning is in New South Wales (NSW).Does postcode 2484 cover more than one suburb?Yes. Postcode 2484 covers 56 localities, so the postcode alone does not identify Mount Warning. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.