Home Postcode finder WA West Coolup West Coolup postcode WA West Coolup is a locality in Western Australia covered by postcode 6214. Postcode 6214 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free West Coolup business listing Be the first listing in West Coolup Common questionsWhat is the postcode for West Coolup?West Coolup, WA has the postcode 6214.What state is West Coolup in?West Coolup is in Western Australia (WA).Does postcode 6214 cover more than one suburb?Yes. Postcode 6214 covers 3 localities, so the postcode alone does not identify West Coolup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.