Home Postcode finder NSW Rose Bay Rose Bay postcode NSW Rose Bay is a locality in New South Wales covered by postcode 2029. Postcode 2029 State or territory New South Wales (NSW) Region Waterloo Add a free Rose Bay business listing Be the first listing in Rose Bay Common questionsWhat is the postcode for Rose Bay?Rose Bay, NSW has the postcode 2029.What state is Rose Bay in?Rose Bay is in New South Wales (NSW).Does postcode 2029 cover more than one suburb?No. Postcode 2029 covers Rose Bay only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.