Home Postcode finder NSW Phegans Bay Phegans Bay postcode NSW Phegans Bay is a locality in New South Wales covered by postcode 2256. Postcode 2256 State or territory New South Wales (NSW) Region Gosford Add a free Phegans Bay business listing Be the first listing in Phegans Bay Common questionsWhat is the postcode for Phegans Bay?Phegans Bay, NSW has the postcode 2256.What state is Phegans Bay in?Phegans Bay is in New South Wales (NSW).Does postcode 2256 cover more than one suburb?Yes. Postcode 2256 covers 10 localities, so the postcode alone does not identify Phegans Bay. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.