Home Postcode finder WA Yalyalup Yalyalup postcode WA Yalyalup is a locality in Western Australia covered by postcode 6280. Postcode 6280 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Yalyalup business listing Be the first listing in Yalyalup Common questionsWhat is the postcode for Yalyalup?Yalyalup, WA has the postcode 6280.What state is Yalyalup in?Yalyalup is in Western Australia (WA).Does postcode 6280 cover more than one suburb?Yes. Postcode 6280 covers 34 localities, so the postcode alone does not identify Yalyalup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.