Home Postcode finder QLD Glan Devon Glan Devon postcode QLD Glan Devon is a locality in Queensland covered by postcode 4615. Postcode 4615 State or territory Queensland (QLD) Region Toowoomba Region Add a free Glan Devon business listing Be the first listing in Glan Devon Common questionsWhat is the postcode for Glan Devon?Glan Devon, QLD has the postcode 4615.What state is Glan Devon in?Glan Devon is in Queensland (QLD).Does postcode 4615 cover more than one suburb?Yes. Postcode 4615 covers 19 localities, so the postcode alone does not identify Glan Devon. Browse other postcodes in Queensland, or widen the search to every Australian postcode.