Home Postcode finder WA Marracoonda Marracoonda postcode WA Marracoonda is a locality in Western Australia covered by postcode 6317. Postcode 6317 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Marracoonda business listing Be the first listing in Marracoonda Common questionsWhat is the postcode for Marracoonda?Marracoonda, WA has the postcode 6317.What state is Marracoonda in?Marracoonda is in Western Australia (WA).Does postcode 6317 cover more than one suburb?Yes. Postcode 6317 covers 14 localities, so the postcode alone does not identify Marracoonda. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.