Home Postcode finder NSW Prestons Prestons postcode NSW Prestons is a locality in New South Wales covered by postcode 2170. Postcode 2170 State or territory New South Wales (NSW) Region Ingleburn Add a free Prestons business listing More business listings in Prestons Businesses in PrestonsActive Pest Control Management24 Thirroul Cct, Prestons NSW 2170, Australia · 1300590944Aline Pumps Sales & Service2 Yarrunga Street, Prestons New South Wales 2170, Australia · +61 1800 018 999Ambition Accounting13 Strathyre Dr, Prestons NSW, Australia · 0287511319 Common questionsWhat is the postcode for Prestons?Prestons, NSW has the postcode 2170.What state is Prestons in?Prestons is in New South Wales (NSW).Does postcode 2170 cover more than one suburb?Yes. Postcode 2170 covers 12 localities, so the postcode alone does not identify Prestons. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.