Home Postcode finder WA Windabout Windabout postcode WA Windabout is a locality in Western Australia covered by postcode 6450. Postcode 6450 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Windabout business listing Be the first listing in Windabout Common questionsWhat is the postcode for Windabout?Windabout, WA has the postcode 6450.What state is Windabout in?Windabout is in Western Australia (WA).Does postcode 6450 cover more than one suburb?Yes. Postcode 6450 covers 23 localities, so the postcode alone does not identify Windabout. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.