Home Postcode finder WA Bentley South Bentley South postcode WA Bentley South is a locality in Western Australia covered by postcode 6102. Postcode 6102 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Bentley South business listing Be the first listing in Bentley South Common questionsWhat is the postcode for Bentley South?Bentley South, WA has the postcode 6102.What state is Bentley South in?Bentley South is in Western Australia (WA).Does postcode 6102 cover more than one suburb?Yes. Postcode 6102 covers 3 localities, so the postcode alone does not identify Bentley South. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.