Home Postcode finder NSW Cowper Cowper postcode NSW Cowper is a locality in New South Wales covered by postcode 2460. Postcode 2460 State or territory New South Wales (NSW) Region NSW North Coast Add a free Cowper business listing More business listings in Cowper Businesses in CowperCowper Public SchoolCnr Clarence & Samuel Sts · 02 66476339 Common questionsWhat is the postcode for Cowper?Cowper, NSW has the postcode 2460.What state is Cowper in?Cowper is in New South Wales (NSW).Does postcode 2460 cover more than one suburb?Yes. Postcode 2460 covers 91 localities, so the postcode alone does not identify Cowper. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.