Home Postcode finder WA Wandillup Wandillup postcode WA Wandillup 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 Wandillup business listing Be the first listing in Wandillup Common questionsWhat is the postcode for Wandillup?Wandillup, WA has the postcode 6256.What state is Wandillup in?Wandillup 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 Wandillup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.