Home Postcode finder WA Maitland Maitland postcode WA Maitland is a locality in Western Australia covered by postcode 6714. Postcode 6714 State or territory Western Australia (WA) Region North West Suburbs Add a free Maitland business listing Be the first listing in Maitland Common questionsWhat is the postcode for Maitland?Maitland, WA has the postcode 6714.What state is Maitland in?Maitland is in Western Australia (WA).Does postcode 6714 cover more than one suburb?Yes. Postcode 6714 covers 20 localities, so the postcode alone does not identify Maitland. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.