Home Postcode finder WA Mindarra Mindarra postcode WA Mindarra is a locality in Western Australia covered by postcode 6503. Postcode 6503 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Mindarra business listing Be the first listing in Mindarra Common questionsWhat is the postcode for Mindarra?Mindarra, WA has the postcode 6503.What state is Mindarra in?Mindarra is in Western Australia (WA).Does postcode 6503 cover more than one suburb?Yes. Postcode 6503 covers 20 localities, so the postcode alone does not identify Mindarra. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.