Home Postcode finder NSW Kynnumboon Kynnumboon postcode NSW Kynnumboon is a locality in New South Wales covered by postcode 2484. Postcode 2484 State or territory New South Wales (NSW) Region Gold Coast Add a free Kynnumboon business listing Be the first listing in Kynnumboon Common questionsWhat is the postcode for Kynnumboon?Kynnumboon, NSW has the postcode 2484.What state is Kynnumboon in?Kynnumboon is in New South Wales (NSW).Does postcode 2484 cover more than one suburb?Yes. Postcode 2484 covers 56 localities, so the postcode alone does not identify Kynnumboon. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.