Home Postcode finder NSW Koonawarra Koonawarra postcode NSW Koonawarra is a locality in New South Wales covered by postcode 2530. Postcode 2530 State or territory New South Wales (NSW) Region Illawarra Add a free Koonawarra business listing Be the first listing in Koonawarra Common questionsWhat is the postcode for Koonawarra?Koonawarra, NSW has the postcode 2530.What state is Koonawarra in?Koonawarra is in New South Wales (NSW).Does postcode 2530 cover more than one suburb?Yes. Postcode 2530 covers 14 localities, so the postcode alone does not identify Koonawarra. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.