Home Postcode finder WA Ballidu Ballidu postcode WA Ballidu is a locality in Western Australia covered by postcode 6606. Postcode 6606 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Ballidu business listing More business listings in Ballidu Businesses in BalliduBallidu Primary SchoolLot 62 Alpha St · 08 96741247 Common questionsWhat is the postcode for Ballidu?Ballidu, WA has the postcode 6606.What state is Ballidu in?Ballidu is in Western Australia (WA).Does postcode 6606 cover more than one suburb?Yes. Postcode 6606 covers 3 localities, so the postcode alone does not identify Ballidu. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.