Home Postcode finder NSW Lapstone Lapstone postcode NSW Lapstone is a locality in New South Wales covered by postcode 2773. Postcode 2773 State or territory New South Wales (NSW) Region Nepean Add a free Lapstone business listing Be the first listing in Lapstone Common questionsWhat is the postcode for Lapstone?Lapstone, NSW has the postcode 2773.What state is Lapstone in?Lapstone is in New South Wales (NSW).Does postcode 2773 cover more than one suburb?Yes. Postcode 2773 covers 2 localities, so the postcode alone does not identify Lapstone. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.