Home Postcode finder WA Roebourne Roebourne postcode WA Roebourne is a locality in Western Australia covered by postcode 6718. Postcode 6718 State or territory Western Australia (WA) Region North West Suburbs Add a free Roebourne business listing More business listings in Roebourne Businesses in RoebourneRoebourne District High SchoolCnr Sholl & Fraser Sts · 08 92821244 Common questionsWhat is the postcode for Roebourne?Roebourne, WA has the postcode 6718.What state is Roebourne in?Roebourne is in Western Australia (WA).Does postcode 6718 cover more than one suburb?Yes. Postcode 6718 covers 2 localities, so the postcode alone does not identify Roebourne. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.