Home Postcode finder QLD Glen Esk Glen Esk postcode QLD Glen Esk is a locality in Queensland covered by postcode 4312. Postcode 4312 State or territory Queensland (QLD) Region Western Suburbs Add a free Glen Esk business listing Be the first listing in Glen Esk Common questionsWhat is the postcode for Glen Esk?Glen Esk, QLD has the postcode 4312.What state is Glen Esk in?Glen Esk is in Queensland (QLD).Does postcode 4312 cover more than one suburb?Yes. Postcode 4312 covers 13 localities, so the postcode alone does not identify Glen Esk. Browse other postcodes in Queensland, or widen the search to every Australian postcode.