Home Postcode finder WA Ashendon Ashendon postcode WA Ashendon is a locality in Western Australia covered by postcode 6111. Postcode 6111 State or territory Western Australia (WA) Region North West Suburbs Add a free Ashendon business listing Be the first listing in Ashendon Common questionsWhat is the postcode for Ashendon?Ashendon, WA has the postcode 6111.What state is Ashendon in?Ashendon is in Western Australia (WA).Does postcode 6111 cover more than one suburb?Yes. Postcode 6111 covers 8 localities, so the postcode alone does not identify Ashendon. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.