Home Postcode finder QLD Adelaide Park Adelaide Park postcode QLD Adelaide Park is a locality in Queensland covered by postcode 4703. Postcode 4703 State or territory Queensland (QLD) Region Central QLD Add a free Adelaide Park business listing Be the first listing in Adelaide Park Common questionsWhat is the postcode for Adelaide Park?Adelaide Park, QLD has the postcode 4703.What state is Adelaide Park in?Adelaide Park is in Queensland (QLD).Does postcode 4703 cover more than one suburb?Yes. Postcode 4703 covers 30 localities, so the postcode alone does not identify Adelaide Park. Browse other postcodes in Queensland, or widen the search to every Australian postcode.