Home Postcode finder QLD Cotton Tree Cotton Tree postcode QLD Cotton Tree is a locality in Queensland covered by postcode 4558. Postcode 4558 State or territory Queensland (QLD) Region Sunshine Coast Add a free Cotton Tree business listing Be the first listing in Cotton Tree Common questionsWhat is the postcode for Cotton Tree?Cotton Tree, QLD has the postcode 4558.What state is Cotton Tree in?Cotton Tree is in Queensland (QLD).Does postcode 4558 cover more than one suburb?Yes. Postcode 4558 covers 4 localities, so the postcode alone does not identify Cotton Tree. Browse other postcodes in Queensland, or widen the search to every Australian postcode.