Home Postcode finder WA Bandya Bandya postcode WA Bandya is a locality in Western Australia covered by postcode 6440. Postcode 6440 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Bandya business listing Be the first listing in Bandya Common questionsWhat is the postcode for Bandya?Bandya, WA has the postcode 6440.What state is Bandya in?Bandya is in Western Australia (WA).Does postcode 6440 cover more than one suburb?Yes. Postcode 6440 covers 6 localities, so the postcode alone does not identify Bandya. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.