Home Postcode finder QLD Boyne Island Boyne Island postcode QLD Boyne Island is a locality in Queensland covered by postcode 4680. Postcode 4680 State or territory Queensland (QLD) Region Central QLD Add a free Boyne Island business listing More business listings in Boyne Island Businesses in Boyne IslandBoyne Island State School151 Malpas St · 07 49799333 Common questionsWhat is the postcode for Boyne Island?Boyne Island, QLD has the postcode 4680.What state is Boyne Island in?Boyne Island is in Queensland (QLD).Does postcode 4680 cover more than one suburb?Yes. Postcode 4680 covers 41 localities, so the postcode alone does not identify Boyne Island. Browse other postcodes in Queensland, or widen the search to every Australian postcode.