Home Postcode finder QLD Glenmorgan Glenmorgan postcode QLD Glenmorgan is a locality in Queensland covered by postcode 4423. Postcode 4423 State or territory Queensland (QLD) Region Toowoomba Region Add a free Glenmorgan business listing More business listings in Glenmorgan Businesses in GlenmorganGlenmorgan State SchoolClive St · 07 46656757 Common questionsWhat is the postcode for Glenmorgan?Glenmorgan, QLD has the postcode 4423.What state is Glenmorgan in?Glenmorgan is in Queensland (QLD).Does postcode 4423 cover more than one suburb?Yes. Postcode 4423 covers 2 localities, so the postcode alone does not identify Glenmorgan. Browse other postcodes in Queensland, or widen the search to every Australian postcode.