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