Home Postcode finder NSW Mays Hill Mays Hill postcode NSW Mays Hill is a locality in New South Wales covered by postcode 2145. Postcode 2145 State or territory New South Wales (NSW) Region Seven Hills Add a free Mays Hill business listing More business listings in Mays Hill Businesses in Mays HillFlowercity1 Franklin St, Mays Hill NSW 2145, Australia · +(02) 9689 1533 Common questionsWhat is the postcode for Mays Hill?Mays Hill, NSW has the postcode 2145.What state is Mays Hill in?Mays Hill is in New South Wales (NSW).Does postcode 2145 cover more than one suburb?Yes. Postcode 2145 covers 9 localities, so the postcode alone does not identify Mays Hill. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.