Home Postcode finder QLD Island Plantation Island Plantation postcode QLD Island Plantation is a locality in Queensland covered by postcode 4650. Postcode 4650 State or territory Queensland (QLD) Region Sunshine Coast Add a free Island Plantation business listing Be the first listing in Island Plantation Common questionsWhat is the postcode for Island Plantation?Island Plantation, QLD has the postcode 4650.What state is Island Plantation in?Island Plantation is in Queensland (QLD).Does postcode 4650 cover more than one suburb?Yes. Postcode 4650 covers 48 localities, so the postcode alone does not identify Island Plantation. Browse other postcodes in Queensland, or widen the search to every Australian postcode.