Home Postcode finder NSW Roslyn Roslyn postcode NSW Roslyn is a locality in New South Wales covered by postcode 2580. Postcode 2580 State or territory New South Wales (NSW) Region Canberra Add a free Roslyn business listing Be the first listing in Roslyn Common questionsWhat is the postcode for Roslyn?Roslyn, NSW has the postcode 2580.What state is Roslyn in?Roslyn is in New South Wales (NSW).Does postcode 2580 cover more than one suburb?Yes. Postcode 2580 covers 44 localities, so the postcode alone does not identify Roslyn. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.