Home Postcode finder WA Roebuck Roebuck postcode WA Roebuck is a locality in Western Australia covered by postcode 6725. Postcode 6725 State or territory Western Australia (WA) Region North West Suburbs Add a free Roebuck business listing Be the first listing in Roebuck Common questionsWhat is the postcode for Roebuck?Roebuck, WA has the postcode 6725.What state is Roebuck in?Roebuck is in Western Australia (WA).Does postcode 6725 cover more than one suburb?Yes. Postcode 6725 covers 10 localities, so the postcode alone does not identify Roebuck. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.