Home Postcode finder NSW Karaak Flat Karaak Flat postcode NSW Karaak Flat is a locality in New South Wales covered by postcode 2429. Postcode 2429 State or territory New South Wales (NSW) Region Hunter Add a free Karaak Flat business listing Be the first listing in Karaak Flat Common questionsWhat is the postcode for Karaak Flat?Karaak Flat, NSW has the postcode 2429.What state is Karaak Flat in?Karaak Flat is in New South Wales (NSW).Does postcode 2429 cover more than one suburb?Yes. Postcode 2429 covers 32 localities, so the postcode alone does not identify Karaak Flat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.