Home Postcode finder QLD The Glen The Glen postcode QLD The Glen is a locality in Queensland covered by postcode 4370. Postcode 4370 State or territory Queensland (QLD) Region Toowoomba Region Add a free The Glen business listing Be the first listing in The Glen Common questionsWhat is the postcode for The Glen?The Glen, QLD has the postcode 4370.What state is The Glen in?The Glen is in Queensland (QLD).Does postcode 4370 cover more than one suburb?Yes. Postcode 4370 covers 46 localities, so the postcode alone does not identify The Glen. Browse other postcodes in Queensland, or widen the search to every Australian postcode.