Home Postcode finder WA Eastbrook Eastbrook postcode WA Eastbrook is a locality in Western Australia covered by postcode 6260. Postcode 6260 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Eastbrook business listing Be the first listing in Eastbrook Common questionsWhat is the postcode for Eastbrook?Eastbrook, WA has the postcode 6260.What state is Eastbrook in?Eastbrook is in Western Australia (WA).Does postcode 6260 cover more than one suburb?Yes. Postcode 6260 covers 10 localities, so the postcode alone does not identify Eastbrook. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.