Home Postcode finder NSW Coopers Gully Coopers Gully postcode NSW Coopers Gully 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 Coopers Gully business listing Be the first listing in Coopers Gully Common questionsWhat is the postcode for Coopers Gully?Coopers Gully, NSW has the postcode 2550.What state is Coopers Gully in?Coopers Gully 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 Coopers Gully. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.