Home Postcodes by state QLD Cockatoo Cockatoo postcode QLD Cockatoo is a locality in Queensland covered by postcode 4419. Postcode 4419 (every locality with postcode 4419) State or territory Queensland (QLD) Region Toowoomba Region Council area Banana Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Cockatoo business listing Be the first listing in Cockatoo Also in postcode 4419GrosmontQLD 4419WandoanQLD 4419 Other places called CockatooCockatooVIC 3781 Common questionsWhat is the postcode for Cockatoo?Cockatoo, QLD has the postcode 4419.What state is Cockatoo in?Cockatoo is in Queensland (QLD).What council is Cockatoo in?Cockatoo is in the Banana local government area.Does postcode 4419 cover more than one suburb?Yes. Postcode 4419 covers 3 localities, so the postcode alone does not identify Cockatoo. Browse other postcodes in Queensland, or widen the search to every Australian postcode.