Home Postcode finder WA Waddington Waddington postcode WA Waddington is a locality in Western Australia covered by postcode 6509. Postcode 6509 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Waddington business listing Be the first listing in Waddington Common questionsWhat is the postcode for Waddington?Waddington, WA has the postcode 6509.What state is Waddington in?Waddington is in Western Australia (WA).Does postcode 6509 cover more than one suburb?Yes. Postcode 6509 covers 4 localities, so the postcode alone does not identify Waddington. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.