Home Postcode finder NSW Belanglo Belanglo postcode NSW Belanglo is a locality in New South Wales covered by postcode 2577. Postcode 2577 State or territory New South Wales (NSW) Region Ingleburn Add a free Belanglo business listing Be the first listing in Belanglo Common questionsWhat is the postcode for Belanglo?Belanglo, NSW has the postcode 2577.What state is Belanglo in?Belanglo is in New South Wales (NSW).Does postcode 2577 cover more than one suburb?Yes. Postcode 2577 covers 30 localities, so the postcode alone does not identify Belanglo. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.