Home Postcode finder WA Yathroo Yathroo postcode WA Yathroo is a locality in Western Australia covered by postcode 6507. Postcode 6507 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Yathroo business listing Be the first listing in Yathroo Common questionsWhat is the postcode for Yathroo?Yathroo, WA has the postcode 6507.What state is Yathroo in?Yathroo is in Western Australia (WA).Does postcode 6507 cover more than one suburb?Yes. Postcode 6507 covers 6 localities, so the postcode alone does not identify Yathroo. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.