Home Postcode finder WA Peaceful Bay Peaceful Bay postcode WA Peaceful Bay is a locality in Western Australia covered by postcode 6333. Postcode 6333 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Peaceful Bay business listing Be the first listing in Peaceful Bay Common questionsWhat is the postcode for Peaceful Bay?Peaceful Bay, WA has the postcode 6333.What state is Peaceful Bay in?Peaceful Bay is in Western Australia (WA).Does postcode 6333 cover more than one suburb?Yes. Postcode 6333 covers 17 localities, so the postcode alone does not identify Peaceful Bay. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.