Home Postcode finder NSW Carrowbrook Carrowbrook postcode NSW Carrowbrook is a locality in New South Wales covered by postcode 2330. Postcode 2330 State or territory New South Wales (NSW) Region Hunter Add a free Carrowbrook business listing Be the first listing in Carrowbrook Common questionsWhat is the postcode for Carrowbrook?Carrowbrook, NSW has the postcode 2330.What state is Carrowbrook in?Carrowbrook is in New South Wales (NSW).Does postcode 2330 cover more than one suburb?Yes. Postcode 2330 covers 63 localities, so the postcode alone does not identify Carrowbrook. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.