Home Postcode finder QLD Glen Niven Glen Niven postcode QLD Glen Niven is a locality in Queensland covered by postcode 4377. Postcode 4377 State or territory Queensland (QLD) Region Toowoomba Region Add a free Glen Niven business listing Be the first listing in Glen Niven Common questionsWhat is the postcode for Glen Niven?Glen Niven, QLD has the postcode 4377.What state is Glen Niven in?Glen Niven is in Queensland (QLD).Does postcode 4377 cover more than one suburb?Yes. Postcode 4377 covers 3 localities, so the postcode alone does not identify Glen Niven. It also appears in 2 states or territories, so it does not identify a state either. Browse other postcodes in Queensland, or widen the search to every Australian postcode.