Home Postcode finder QLD Marys Creek Marys Creek postcode QLD Marys Creek is a locality in Queensland covered by postcode 4570. Postcode 4570 State or territory Queensland (QLD) Region Sunshine Coast Add a free Marys Creek business listing Be the first listing in Marys Creek Common questionsWhat is the postcode for Marys Creek?Marys Creek, QLD has the postcode 4570.What state is Marys Creek in?Marys Creek is in Queensland (QLD).Does postcode 4570 cover more than one suburb?Yes. Postcode 4570 covers 85 localities, so the postcode alone does not identify Marys Creek. Browse other postcodes in Queensland, or widen the search to every Australian postcode.