Home Postcode finder WA Changerup Changerup postcode WA Changerup 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 Changerup business listing Be the first listing in Changerup Common questionsWhat is the postcode for Changerup?Changerup, WA has the postcode 6394.What state is Changerup in?Changerup 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 Changerup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.