Home Postcode finder NSWDL Swan Bay Swan Bay postcode NSWDL Swan Bay is a locality in New South Wales covered by postcode 2324. Postcode 2324 State or territory New South Wales (NSWDL) Region Hunter Add a free Swan Bay business listing Be the first listing in Swan Bay Common questionsWhat is the postcode for Swan Bay?Swan Bay, NSWDL has the postcode 2324.What state is Swan Bay in?Swan Bay is in New South Wales (NSWDL).Does postcode 2324 cover more than one suburb?Yes. Postcode 2324 covers 22 localities, so the postcode alone does not identify Swan Bay. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.