Home Postcode finder WA Howatharra Howatharra postcode WA Howatharra is a locality in Western Australia covered by postcode 6532. Postcode 6532 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Howatharra business listing Be the first listing in Howatharra Common questionsWhat is the postcode for Howatharra?Howatharra, WA has the postcode 6532.What state is Howatharra in?Howatharra is in Western Australia (WA).Does postcode 6532 cover more than one suburb?Yes. Postcode 6532 covers 59 localities, so the postcode alone does not identify Howatharra. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.