Home Postcode finder WA Coblinine Coblinine postcode WA Coblinine 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 Coblinine business listing Be the first listing in Coblinine Common questionsWhat is the postcode for Coblinine?Coblinine, WA has the postcode 6317.What state is Coblinine in?Coblinine 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 Coblinine. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.