Home Postcode finder NSW Gregory Hills Gregory Hills postcode NSW Gregory Hills is a locality in New South Wales covered by postcode 2557. Postcode 2557 State or territory New South Wales (NSW) Region Ingleburn Add a free Gregory Hills business listing More business listings in Gregory Hills Businesses in Gregory HillsBaby Gender Surprise60 Firewheel Cct, Gregory Hills NSW, Australia · 0497 766 116Butcher Direct Pty LtdUnit 2 11 Rodeo Rd · 0433225772Buy Ozempic Online Australiaunit 1/51 Central Hills Drive, Gregory Hills NSW, Australia · +613027789458 Common questionsWhat is the postcode for Gregory Hills?Gregory Hills, NSW has the postcode 2557.What state is Gregory Hills in?Gregory Hills is in New South Wales (NSW).Does postcode 2557 cover more than one suburb?Yes. Postcode 2557 covers 3 localities, so the postcode alone does not identify Gregory Hills. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.