Home Postcode finder NSW Little Hartley Little Hartley postcode NSW Little Hartley 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 Little Hartley business listing More business listings in Little Hartley Businesses in Little HartleyAussie Panel2366b Great Western Highway · 610263552309 Common questionsWhat is the postcode for Little Hartley?Little Hartley, NSW has the postcode 2790.What state is Little Hartley in?Little Hartley 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 Little Hartley. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.