Home Postcode finder WA Hester Brook Hester Brook postcode WA Hester Brook is a locality in Western Australia covered by postcode 6255. Postcode 6255 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Hester Brook business listing Be the first listing in Hester Brook Common questionsWhat is the postcode for Hester Brook?Hester Brook, WA has the postcode 6255.What state is Hester Brook in?Hester Brook is in Western Australia (WA).Does postcode 6255 cover more than one suburb?Yes. Postcode 6255 covers 7 localities, so the postcode alone does not identify Hester Brook. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.