Home Postcode finder NSW Charlotte Bay Charlotte Bay postcode NSW Charlotte Bay is a locality in New South Wales covered by postcode 2428. Postcode 2428 State or territory New South Wales (NSW) Region Hunter Add a free Charlotte Bay business listing Be the first listing in Charlotte Bay Common questionsWhat is the postcode for Charlotte Bay?Charlotte Bay, NSW has the postcode 2428.What state is Charlotte Bay in?Charlotte Bay is in New South Wales (NSW).Does postcode 2428 cover more than one suburb?Yes. Postcode 2428 covers 21 localities, so the postcode alone does not identify Charlotte Bay. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.