Home Postcode finder WA Cape Le Grand Cape Le Grand postcode WA Cape Le Grand is a locality in Western Australia covered by postcode 6450. Postcode 6450 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Cape Le Grand business listing Be the first listing in Cape Le Grand Common questionsWhat is the postcode for Cape Le Grand?Cape Le Grand, WA has the postcode 6450.What state is Cape Le Grand in?Cape Le Grand is in Western Australia (WA).Does postcode 6450 cover more than one suburb?Yes. Postcode 6450 covers 23 localities, so the postcode alone does not identify Cape Le Grand. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.