Home Postcode finder WA Cundinup Cundinup postcode WA Cundinup is a locality in Western Australia covered by postcode 6275. Postcode 6275 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Cundinup business listing Be the first listing in Cundinup Common questionsWhat is the postcode for Cundinup?Cundinup, WA has the postcode 6275.What state is Cundinup in?Cundinup is in Western Australia (WA).Does postcode 6275 cover more than one suburb?Yes. Postcode 6275 covers 10 localities, so the postcode alone does not identify Cundinup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.