Home Postcode finder NSW Belgravia Belgravia postcode NSW Belgravia is a locality in New South Wales covered by postcode 2800. Postcode 2800 State or territory New South Wales (NSW) Region NSW Country West Add a free Belgravia business listing Be the first listing in Belgravia Common questionsWhat is the postcode for Belgravia?Belgravia, NSW has the postcode 2800.What state is Belgravia in?Belgravia is in New South Wales (NSW).Does postcode 2800 cover more than one suburb?Yes. Postcode 2800 covers 33 localities, so the postcode alone does not identify Belgravia. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.