Home Postcode finder WA North Trayning North Trayning postcode WA North 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 North Trayning business listing Be the first listing in North Trayning Common questionsWhat is the postcode for North Trayning?North Trayning, WA has the postcode 6488.What state is North Trayning in?North 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 North Trayning. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.