Home Postcode finder QLD Mundoolun Mundoolun postcode QLD Mundoolun is a locality in Queensland covered by postcode 4285. Postcode 4285 State or territory Queensland (QLD) Region Heathwood Add a free Mundoolun business listing Be the first listing in Mundoolun Common questionsWhat is the postcode for Mundoolun?Mundoolun, QLD has the postcode 4285.What state is Mundoolun in?Mundoolun is in Queensland (QLD).Does postcode 4285 cover more than one suburb?Yes. Postcode 4285 covers 33 localities, so the postcode alone does not identify Mundoolun. Browse other postcodes in Queensland, or widen the search to every Australian postcode.