Home Postcode finder NSWDL St Georges Basin St Georges Basin postcode NSWDL St Georges Basin is a locality in New South Wales covered by postcode 2540. Postcode 2540 State or territory New South Wales (NSWDL) Region NSW Country West Add a free St Georges Basin business listing Be the first listing in St Georges Basin Common questionsWhat is the postcode for St Georges Basin?St Georges Basin, NSWDL has the postcode 2540.What state is St Georges Basin in?St Georges Basin is in New South Wales (NSWDL).Does postcode 2540 cover more than one suburb?Yes. Postcode 2540 covers 68 localities, so the postcode alone does not identify St Georges Basin. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.