Home Postcode finder NSW Empire Bay Empire Bay postcode NSW Empire Bay is a locality in New South Wales covered by postcode 2257. Postcode 2257 State or territory New South Wales (NSW) Region Gosford Add a free Empire Bay business listing More business listings in Empire Bay Businesses in Empire BayEmpire Bay Public SchoolEmpire Bay Drive · 02 43691796SDA CustomisedServing Area · 0435 100 380 Common questionsWhat is the postcode for Empire Bay?Empire Bay, NSW has the postcode 2257.What state is Empire Bay in?Empire Bay is in New South Wales (NSW).Does postcode 2257 cover more than one suburb?Yes. Postcode 2257 covers 12 localities, so the postcode alone does not identify Empire Bay. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.