Home Postcode finder WA Cunjardine Cunjardine postcode WA Cunjardine is a locality in Western Australia covered by postcode 6401. Postcode 6401 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Cunjardine business listing Be the first listing in Cunjardine Common questionsWhat is the postcode for Cunjardine?Cunjardine, WA has the postcode 6401.What state is Cunjardine in?Cunjardine is in Western Australia (WA).Does postcode 6401 cover more than one suburb?Yes. Postcode 6401 covers 18 localities, so the postcode alone does not identify Cunjardine. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.