Home Postcode finder WA Kadathinni Kadathinni postcode WA Kadathinni is a locality in Western Australia covered by postcode 6519. Postcode 6519 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Kadathinni business listing Be the first listing in Kadathinni Common questionsWhat is the postcode for Kadathinni?Kadathinni, WA has the postcode 6519.What state is Kadathinni in?Kadathinni is in Western Australia (WA).Does postcode 6519 cover more than one suburb?Yes. Postcode 6519 covers 6 localities, so the postcode alone does not identify Kadathinni. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.