Home Postcode finder NSW Westgate Westgate postcode NSW Westgate is a locality in New South Wales covered by postcode 2048. Postcode 2048 State or territory New South Wales (NSW) Region Alexandria Add a free Westgate business listing Be the first listing in Westgate Common questionsWhat is the postcode for Westgate?Westgate, NSW has the postcode 2048.What state is Westgate in?Westgate is in New South Wales (NSW).Does postcode 2048 cover more than one suburb?Yes. Postcode 2048 covers 2 localities, so the postcode alone does not identify Westgate. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.