Home Postcode finder NSW Hillville Hillville postcode NSW Hillville is a locality in New South Wales covered by postcode 2430. Postcode 2430 State or territory New South Wales (NSW) Region Hunter Add a free Hillville business listing Be the first listing in Hillville Common questionsWhat is the postcode for Hillville?Hillville, NSW has the postcode 2430.What state is Hillville in?Hillville is in New South Wales (NSW).Does postcode 2430 cover more than one suburb?Yes. Postcode 2430 covers 39 localities, so the postcode alone does not identify Hillville. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.