Home Postcode finder NSW The Slopes The Slopes postcode NSW The Slopes is a locality in New South Wales covered by postcode 2754. Postcode 2754 State or territory New South Wales (NSW) Region Nepean Add a free The Slopes business listing Be the first listing in The Slopes Common questionsWhat is the postcode for The Slopes?The Slopes, NSW has the postcode 2754.What state is The Slopes in?The Slopes is in New South Wales (NSW).Does postcode 2754 cover more than one suburb?Yes. Postcode 2754 covers 3 localities, so the postcode alone does not identify The Slopes. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.