Home Postcode finder WA Milpara Milpara postcode WA Milpara is a locality in Western Australia covered by postcode 6330. Postcode 6330 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Milpara business listing Be the first listing in Milpara Common questionsWhat is the postcode for Milpara?Milpara, WA has the postcode 6330.What state is Milpara in?Milpara is in Western Australia (WA).Does postcode 6330 cover more than one suburb?Yes. Postcode 6330 covers 50 localities, so the postcode alone does not identify Milpara. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.