Home Postcode finder NSW Mellool Mellool postcode NSW Mellool is a locality in New South Wales covered by postcode 2734. Postcode 2734 State or territory New South Wales (NSW) Region Vic Far Country Add a free Mellool business listing Be the first listing in Mellool Common questionsWhat is the postcode for Mellool?Mellool, NSW has the postcode 2734.What state is Mellool in?Mellool is in New South Wales (NSW).Does postcode 2734 cover more than one suburb?Yes. Postcode 2734 covers 9 localities, so the postcode alone does not identify Mellool. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.