Home Postcode finder WA Mallee Hill Mallee Hill postcode WA Mallee Hill is a locality in Western Australia covered by postcode 6353. Postcode 6353 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Mallee Hill business listing Be the first listing in Mallee Hill Common questionsWhat is the postcode for Mallee Hill?Mallee Hill, WA has the postcode 6353.What state is Mallee Hill in?Mallee Hill is in Western Australia (WA).Does postcode 6353 cover more than one suburb?Yes. Postcode 6353 covers 10 localities, so the postcode alone does not identify Mallee Hill. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.