Home Postcode finder WA South Trayning South Trayning postcode WA South Trayning is a locality in Western Australia covered by postcode 6488. Postcode 6488 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free South Trayning business listing Be the first listing in South Trayning Common questionsWhat is the postcode for South Trayning?South Trayning, WA has the postcode 6488.What state is South Trayning in?South Trayning is in Western Australia (WA).Does postcode 6488 cover more than one suburb?Yes. Postcode 6488 covers 3 localities, so the postcode alone does not identify South Trayning. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.