Home Postcode finder WA Gledhow Gledhow postcode WA Gledhow is a locality in Western Australia covered by postcode 6330. Postcode 6330 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Gledhow business listing Be the first listing in Gledhow Common questionsWhat is the postcode for Gledhow?Gledhow, WA has the postcode 6330.What state is Gledhow in?Gledhow is in Western Australia (WA).Does postcode 6330 cover more than one suburb?Yes. Postcode 6330 covers 50 localities, so the postcode alone does not identify Gledhow. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.