Home Postcode finder WA Glen Mervyn Glen Mervyn postcode WA Glen Mervyn is a locality in Western Australia covered by postcode 6239. Postcode 6239 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Glen Mervyn business listing Be the first listing in Glen Mervyn Common questionsWhat is the postcode for Glen Mervyn?Glen Mervyn, WA has the postcode 6239.What state is Glen Mervyn in?Glen Mervyn is in Western Australia (WA).Does postcode 6239 cover more than one suburb?Yes. Postcode 6239 covers 11 localities, so the postcode alone does not identify Glen Mervyn. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.