Home Postcode finder QLD Glen Aplin Glen Aplin postcode QLD Glen Aplin is a locality in Queensland covered by postcode 4381. Postcode 4381 State or territory Queensland (QLD) Region Toowoomba Region Add a free Glen Aplin business listing More business listings in Glen Aplin Businesses in Glen AplinGlen Aplin State SchoolMt Stirling Rd · 07 46858333 Common questionsWhat is the postcode for Glen Aplin?Glen Aplin, QLD has the postcode 4381.What state is Glen Aplin in?Glen Aplin is in Queensland (QLD).Does postcode 4381 cover more than one suburb?Yes. Postcode 4381 covers 2 localities, so the postcode alone does not identify Glen Aplin. Browse other postcodes in Queensland, or widen the search to every Australian postcode.