Home Postcode finder NSW Newtown Newtown postcode NSW Newtown is a locality in New South Wales covered by postcode 2042. Postcode 2042 State or territory New South Wales (NSW) Region Alexandria Add a free Newtown business listing More business listings in Newtown Businesses in NewtownAgency By Glenn Regan546-562 King street · (02) 9551 2111Art and YouChurch Street, Newtown NSW, Australia · 0414757391Australia Street Infants School229 Australia St · 02 95575377 Common questionsWhat is the postcode for Newtown?Newtown, NSW has the postcode 2042.What state is Newtown in?Newtown is in New South Wales (NSW).Does postcode 2042 cover more than one suburb?Yes. Postcode 2042 covers 2 localities, so the postcode alone does not identify Newtown. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.