Home Postcode finder QLD Banana Banana postcode QLD Banana is a locality in Queensland covered by postcode 4702. Postcode 4702 State or territory Queensland (QLD) Region Central QLD Add a free Banana business listing More business listings in Banana Businesses in BananaBanana State SchoolDawson Highway · 07 49959333 Common questionsWhat is the postcode for Banana?Banana, QLD has the postcode 4702.What state is Banana in?Banana is in Queensland (QLD).Does postcode 4702 cover more than one suburb?Yes. Postcode 4702 covers 87 localities, so the postcode alone does not identify Banana. Browse other postcodes in Queensland, or widen the search to every Australian postcode.