Home Postcode finder WA Camballin Camballin postcode WA Camballin is a locality in Western Australia covered by postcode 6728. Postcode 6728 State or territory Western Australia (WA) Region North West Suburbs Add a free Camballin business listing Be the first listing in Camballin Common questionsWhat is the postcode for Camballin?Camballin, WA has the postcode 6728.What state is Camballin in?Camballin is in Western Australia (WA).Does postcode 6728 cover more than one suburb?Yes. Postcode 6728 covers 8 localities, so the postcode alone does not identify Camballin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.