Home Postcode finder NSW Kew Kew postcode NSW Kew is a locality in New South Wales covered by postcode 2439. Postcode 2439 State or territory New South Wales (NSW) Region NSW North Coast Add a free Kew business listing Be the first listing in Kew Common questionsWhat is the postcode for Kew?Kew, NSW has the postcode 2439.What state is Kew in?Kew is in New South Wales (NSW).Does postcode 2439 cover more than one suburb?Yes. Postcode 2439 covers 10 localities, so the postcode alone does not identify Kew. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.