Home Postcode finder WA Robinson Robinson postcode WA Robinson 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 Robinson business listing Be the first listing in Robinson Common questionsWhat is the postcode for Robinson?Robinson, WA has the postcode 6330.What state is Robinson in?Robinson 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 Robinson. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.