Home Postcode finder NSW Warialda Warialda postcode NSW Warialda is a locality in New South Wales covered by postcode 2402. Postcode 2402 State or territory New South Wales (NSW) Region NSW North Coast Add a free Warialda business listing More business listings in Warialda Businesses in WarialdaSt Joseph's SchoolStewart Ave · 02 67291328Warialda High School2 Apollo Ave · 02 67291000Warialda Public School27 Hope St · 02 67291131 Common questionsWhat is the postcode for Warialda?Warialda, NSW has the postcode 2402.What state is Warialda in?Warialda is in New South Wales (NSW).Does postcode 2402 cover more than one suburb?Yes. Postcode 2402 covers 4 localities, so the postcode alone does not identify Warialda. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.