Home Postcode finder WA Yornup Yornup postcode WA Yornup is a locality in Western Australia covered by postcode 6256. Postcode 6256 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Yornup business listing Be the first listing in Yornup Common questionsWhat is the postcode for Yornup?Yornup, WA has the postcode 6256.What state is Yornup in?Yornup is in Western Australia (WA).Does postcode 6256 cover more than one suburb?Yes. Postcode 6256 covers 6 localities, so the postcode alone does not identify Yornup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.