Home Postcode finder WA Preston Beach Preston Beach postcode WA Preston Beach is a locality in Western Australia covered by postcode 6215. Postcode 6215 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Preston Beach business listing Be the first listing in Preston Beach Common questionsWhat is the postcode for Preston Beach?Preston Beach, WA has the postcode 6215.What state is Preston Beach in?Preston Beach is in Western Australia (WA).Does postcode 6215 cover more than one suburb?Yes. Postcode 6215 covers 6 localities, so the postcode alone does not identify Preston Beach. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.