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