Home Postcode finder WA Alexandra Bridge Alexandra Bridge postcode WA Alexandra Bridge is a locality in Western Australia covered by postcode 6288. Postcode 6288 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Alexandra Bridge business listing Be the first listing in Alexandra Bridge Common questionsWhat is the postcode for Alexandra Bridge?Alexandra Bridge, WA has the postcode 6288.What state is Alexandra Bridge in?Alexandra Bridge is in Western Australia (WA).Does postcode 6288 cover more than one suburb?Yes. Postcode 6288 covers 7 localities, so the postcode alone does not identify Alexandra Bridge. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.