Home Postcode finder NSW Roseberg Roseberg postcode NSW Roseberg is a locality in New South Wales covered by postcode 2793. Postcode 2793 State or territory New South Wales (NSW) Region NSW Country West Add a free Roseberg business listing Be the first listing in Roseberg Common questionsWhat is the postcode for Roseberg?Roseberg, NSW has the postcode 2793.What state is Roseberg in?Roseberg is in New South Wales (NSW).Does postcode 2793 cover more than one suburb?Yes. Postcode 2793 covers 3 localities, so the postcode alone does not identify Roseberg. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.