Home Postcode finder NSW Bungwahl Bungwahl postcode NSW Bungwahl is a locality in New South Wales covered by postcode 2423. Postcode 2423 State or territory New South Wales (NSW) Region Hunter Add a free Bungwahl business listing More business listings in Bungwahl Businesses in BungwahlBungwahl Public School56 Seal Rocks Rd · 02 49976175 Common questionsWhat is the postcode for Bungwahl?Bungwahl, NSW has the postcode 2423.What state is Bungwahl in?Bungwahl is in New South Wales (NSW).Does postcode 2423 cover more than one suburb?Yes. Postcode 2423 covers 20 localities, so the postcode alone does not identify Bungwahl. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.