Home Postcode finder WA Durack Durack postcode WA Durack is a locality in Western Australia covered by postcode 6743. Postcode 6743 State or territory Western Australia (WA) Region North West Suburbs Add a free Durack business listing Be the first listing in Durack Common questionsWhat is the postcode for Durack?Durack, WA has the postcode 6743.What state is Durack in?Durack is in Western Australia (WA).Does postcode 6743 cover more than one suburb?Yes. Postcode 6743 covers 6 localities, so the postcode alone does not identify Durack. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.