Home Postcode finder QLD Glen Isla Glen Isla postcode QLD Glen Isla is a locality in Queensland covered by postcode 4800. Postcode 4800 State or territory Queensland (QLD) Region Central QLD Add a free Glen Isla business listing Be the first listing in Glen Isla Common questionsWhat is the postcode for Glen Isla?Glen Isla, QLD has the postcode 4800.What state is Glen Isla in?Glen Isla is in Queensland (QLD).Does postcode 4800 cover more than one suburb?Yes. Postcode 4800 covers 38 localities, so the postcode alone does not identify Glen Isla. Browse other postcodes in Queensland, or widen the search to every Australian postcode.