Home Postcode finder NSW Hartley Vale Hartley Vale postcode NSW Hartley Vale is a locality in New South Wales covered by postcode 2790. Postcode 2790 State or territory New South Wales (NSW) Region NSW Country West Add a free Hartley Vale business listing Be the first listing in Hartley Vale Common questionsWhat is the postcode for Hartley Vale?Hartley Vale, NSW has the postcode 2790.What state is Hartley Vale in?Hartley Vale is in New South Wales (NSW).Does postcode 2790 cover more than one suburb?Yes. Postcode 2790 covers 40 localities, so the postcode alone does not identify Hartley Vale. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.