Home Postcode finder QLD Swanbank Swanbank postcode QLD Swanbank is a locality in Queensland covered by postcode 4306. Postcode 4306 State or territory Queensland (QLD) Region Western Suburbs Add a free Swanbank business listing More business listings in Swanbank Businesses in SwanbankCrusader Removals Queensland13a E Owen St, Swanbank QLD 4306, Australia · 0423706094 Common questionsWhat is the postcode for Swanbank?Swanbank, QLD has the postcode 4306.What state is Swanbank in?Swanbank is in Queensland (QLD).Does postcode 4306 cover more than one suburb?Yes. Postcode 4306 covers 56 localities, so the postcode alone does not identify Swanbank. Browse other postcodes in Queensland, or widen the search to every Australian postcode.