Home Postcode finder NSW Rocky Hall Rocky Hall postcode NSW Rocky Hall is a locality in New South Wales covered by postcode 2550. Postcode 2550 State or territory New South Wales (NSW) Region NSW Country West Add a free Rocky Hall business listing Be the first listing in Rocky Hall Common questionsWhat is the postcode for Rocky Hall?Rocky Hall, NSW has the postcode 2550.What state is Rocky Hall in?Rocky Hall is in New South Wales (NSW).Does postcode 2550 cover more than one suburb?Yes. Postcode 2550 covers 52 localities, so the postcode alone does not identify Rocky Hall. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.