Home Postcode finder QLD Kiels Mountain Kiels Mountain postcode QLD Kiels Mountain is a locality in Queensland covered by postcode 4559. Postcode 4559 State or territory Queensland (QLD) Region Sunshine Coast Add a free Kiels Mountain business listing Be the first listing in Kiels Mountain Common questionsWhat is the postcode for Kiels Mountain?Kiels Mountain, QLD has the postcode 4559.What state is Kiels Mountain in?Kiels Mountain is in Queensland (QLD).Does postcode 4559 cover more than one suburb?Yes. Postcode 4559 covers 4 localities, so the postcode alone does not identify Kiels Mountain. Browse other postcodes in Queensland, or widen the search to every Australian postcode.