Home Postcodes by state WA Mount Cooke Mount Cooke postcode WA Mount Cooke is a locality in Western Australia covered by postcode 6390. Postcode 6390 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Mount Cooke business listing Be the first listing in Mount Cooke Suburbs near Mount CookeStraight-line distance between locality centres.FlintWA 6302 · 12.3 kmSolusWA 6207 · 16.8 kmAshendonWA 6111 · 22.3 km Also in postcode 6390BannisterWA 6390BoddingtonWA 6390CrossmanWA 6390Lower HothamWA 6390MarradongWA 6390Mount WellsWA 6390North BannisterWA 6390RanfordWA 6390Upper MurrayWA 6390WuramingWA 6390 Common questionsWhat is the postcode for Mount Cooke?Mount Cooke, WA has the postcode 6390.What state is Mount Cooke in?Mount Cooke is in Western Australia (WA).Does postcode 6390 cover more than one suburb?Yes. Postcode 6390 covers 11 localities, so the postcode alone does not identify Mount Cooke.What suburbs are near Mount Cooke?The closest are Flint (12.3 km), Solus (16.8 km) and Ashendon (22.3 km). Distances are straight lines between locality centres. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.