Home Postcode finder WA Cape Arid Cape Arid postcode WA Cape Arid is a locality in Western Australia covered by postcode 6452. Postcode 6452 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Cape Arid business listing Be the first listing in Cape Arid Common questionsWhat is the postcode for Cape Arid?Cape Arid, WA has the postcode 6452.What state is Cape Arid in?Cape Arid is in Western Australia (WA).Does postcode 6452 cover more than one suburb?Yes. Postcode 6452 covers 3 localities, so the postcode alone does not identify Cape Arid. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.