Home Postcode finder WA Wanerie Wanerie postcode WA Wanerie is a locality in Western Australia covered by postcode 6503. Postcode 6503 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Wanerie business listing Be the first listing in Wanerie Common questionsWhat is the postcode for Wanerie?Wanerie, WA has the postcode 6503.What state is Wanerie in?Wanerie is in Western Australia (WA).Does postcode 6503 cover more than one suburb?Yes. Postcode 6503 covers 20 localities, so the postcode alone does not identify Wanerie. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.