Home Postcode finder NSW Collum Collum Collum Collum postcode NSW Collum Collum 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 Collum Collum business listing Be the first listing in Collum Collum Common questionsWhat is the postcode for Collum Collum?Collum Collum, NSW has the postcode 2460.What state is Collum Collum in?Collum Collum 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 Collum Collum. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.