Home Postcode finder WA Yoongarillup Yoongarillup postcode WA Yoongarillup 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 Yoongarillup business listing Be the first listing in Yoongarillup Common questionsWhat is the postcode for Yoongarillup?Yoongarillup, WA has the postcode 6280.What state is Yoongarillup in?Yoongarillup 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 Yoongarillup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.