Home Postcode finder WA Boscabel Boscabel postcode WA Boscabel is a locality in Western Australia covered by postcode 6394. Postcode 6394 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Boscabel business listing Be the first listing in Boscabel Common questionsWhat is the postcode for Boscabel?Boscabel, WA has the postcode 6394.What state is Boscabel in?Boscabel is in Western Australia (WA).Does postcode 6394 cover more than one suburb?Yes. Postcode 6394 covers 8 localities, so the postcode alone does not identify Boscabel. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.