Home Postcode finder NSW Wongawilli Wongawilli postcode NSW Wongawilli 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 Wongawilli business listing Be the first listing in Wongawilli Common questionsWhat is the postcode for Wongawilli?Wongawilli, NSW has the postcode 2530.What state is Wongawilli in?Wongawilli 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 Wongawilli. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.