Home Postcode finder NSW Bolwarra Bolwarra postcode NSW Bolwarra is a locality in New South Wales covered by postcode 2320. Postcode 2320 State or territory New South Wales (NSW) Region Hunter Add a free Bolwarra business listing More business listings in Bolwarra Businesses in BolwarraBolwarra Public SchoolBolwarra Rd · 02 49301296 Common questionsWhat is the postcode for Bolwarra?Bolwarra, NSW has the postcode 2320.What state is Bolwarra in?Bolwarra is in New South Wales (NSW).Does postcode 2320 cover more than one suburb?Yes. Postcode 2320 covers 30 localities, so the postcode alone does not identify Bolwarra. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.