Home Postcode finder QLD Round Hill Round Hill postcode QLD Round Hill is a locality in Queensland covered by postcode 4677. Postcode 4677 State or territory Queensland (QLD) Region Central QLD Add a free Round Hill business listing Be the first listing in Round Hill Common questionsWhat is the postcode for Round Hill?Round Hill, QLD has the postcode 4677.What state is Round Hill in?Round Hill is in Queensland (QLD).Does postcode 4677 cover more than one suburb?Yes. Postcode 4677 covers 8 localities, so the postcode alone does not identify Round Hill. Browse other postcodes in Queensland, or widen the search to every Australian postcode.