Home Postcode finder NSW Koorainghat Koorainghat postcode NSW Koorainghat 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 Koorainghat business listing Be the first listing in Koorainghat Common questionsWhat is the postcode for Koorainghat?Koorainghat, NSW has the postcode 2430.What state is Koorainghat in?Koorainghat 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 Koorainghat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.