Home Postcode finder QLD Coolabine Coolabine postcode QLD Coolabine is a locality in Queensland covered by postcode 4574. Postcode 4574 State or territory Queensland (QLD) Region Sunshine Coast Add a free Coolabine business listing Be the first listing in Coolabine Common questionsWhat is the postcode for Coolabine?Coolabine, QLD has the postcode 4574.What state is Coolabine in?Coolabine is in Queensland (QLD).Does postcode 4574 cover more than one suburb?Yes. Postcode 4574 covers 6 localities, so the postcode alone does not identify Coolabine. Browse other postcodes in Queensland, or widen the search to every Australian postcode.