Home Postcode finder WA Yannarie Yannarie postcode WA Yannarie is a locality in Western Australia covered by postcode 6710. Postcode 6710 State or territory Western Australia (WA) Region North West Suburbs Add a free Yannarie business listing Be the first listing in Yannarie Common questionsWhat is the postcode for Yannarie?Yannarie, WA has the postcode 6710.What state is Yannarie in?Yannarie is in Western Australia (WA).Does postcode 6710 cover more than one suburb?Yes. Postcode 6710 covers 5 localities, so the postcode alone does not identify Yannarie. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.