Home Postcode finder WA Ranford Ranford postcode WA Ranford 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 Ranford business listing Be the first listing in Ranford Common questionsWhat is the postcode for Ranford?Ranford, WA has the postcode 6390.What state is Ranford in?Ranford 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 Ranford. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.