Home Postcodes by state QLD Toobanna Toobanna postcode QLD Toobanna is a locality in Queensland covered by postcode 4850. Postcode 4850 State or territory Queensland (QLD) Region North QLD Add a free Toobanna business listing Be the first listing in Toobanna Common questionsWhat is the postcode for Toobanna?Toobanna, QLD has the postcode 4850.What state is Toobanna in?Toobanna is in Queensland (QLD).Does postcode 4850 cover more than one suburb?Yes. Postcode 4850 covers 34 localities, so the postcode alone does not identify Toobanna. Browse other postcodes in Queensland, or widen the search to every Australian postcode.