Home Postcode finder NSW Blacktown Blacktown postcode NSW Blacktown is a locality in New South Wales covered by postcode 2148. Postcode 2148 State or territory New South Wales (NSW) Region Seven Hills Add a free Blacktown business listing More business listings in Blacktown Businesses in Blacktown3D Kitchen Design22 Turner Street Blacktown · +61411414605A Plus Electrical14 St Martins Cres, Blacktown NSW 2148, Australia · 470 641 660A Plus Electrical14 St Martins Cres, Blacktown NSW 2148, Australia · 0470641660 Common questionsWhat is the postcode for Blacktown?Blacktown, NSW has the postcode 2148.What state is Blacktown in?Blacktown is in New South Wales (NSW).Does postcode 2148 cover more than one suburb?Yes. Postcode 2148 covers 7 localities, so the postcode alone does not identify Blacktown. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.