Home Postcode finder NSW Greenleigh Greenleigh postcode NSW Greenleigh is a locality in New South Wales covered by postcode 2620. Postcode 2620 State or territory New South Wales (NSW) Region Canberra Add a free Greenleigh business listing Be the first listing in Greenleigh Common questionsWhat is the postcode for Greenleigh?Greenleigh, NSW has the postcode 2620.What state is Greenleigh in?Greenleigh is in New South Wales (NSW).Does postcode 2620 cover more than one suburb?Yes. Postcode 2620 covers 29 localities, so the postcode alone does not identify Greenleigh. It also appears in 2 states or territories, so it does not identify a state either. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.