Home Postcode finder WA Bunjil Bunjil postcode WA Bunjil is a locality in Western Australia covered by postcode 6623. Postcode 6623 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Bunjil business listing Be the first listing in Bunjil Common questionsWhat is the postcode for Bunjil?Bunjil, WA has the postcode 6623.What state is Bunjil in?Bunjil is in Western Australia (WA).Does postcode 6623 cover more than one suburb?Yes. Postcode 6623 covers 6 localities, so the postcode alone does not identify Bunjil. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.