Home Postcode finder NSW Watersleigh Watersleigh postcode NSW Watersleigh is a locality in New South Wales covered by postcode 2540. Postcode 2540 State or territory New South Wales (NSW) Region NSW Country West Add a free Watersleigh business listing Be the first listing in Watersleigh Common questionsWhat is the postcode for Watersleigh?Watersleigh, NSW has the postcode 2540.What state is Watersleigh in?Watersleigh is in New South Wales (NSW).Does postcode 2540 cover more than one suburb?Yes. Postcode 2540 covers 68 localities, so the postcode alone does not identify Watersleigh. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.