Home Postcode finder NSW Willawarrin Willawarrin postcode NSW Willawarrin is a locality in New South Wales covered by postcode 2440. Postcode 2440 State or territory New South Wales (NSW) Region NSW North Coast Add a free Willawarrin business listing More business listings in Willawarrin Businesses in WillawarrinMillbank Public SchoolHickeys Creek Rd via · 02 65671250Willawarrin Public SchoolArmidale Rd · 02 65671231 Common questionsWhat is the postcode for Willawarrin?Willawarrin, NSW has the postcode 2440.What state is Willawarrin in?Willawarrin is in New South Wales (NSW).Does postcode 2440 cover more than one suburb?Yes. Postcode 2440 covers 48 localities, so the postcode alone does not identify Willawarrin. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.