Home Postcode finder QLD Wandoan Wandoan postcode QLD Wandoan is a locality in Queensland covered by postcode 4419. Postcode 4419 State or territory Queensland (QLD) Region Toowoomba Region Add a free Wandoan business listing More business listings in Wandoan Businesses in WandoanWandoan State School49 North St · 07 46288888 Common questionsWhat is the postcode for Wandoan?Wandoan, QLD has the postcode 4419.What state is Wandoan in?Wandoan is in Queensland (QLD).Does postcode 4419 cover more than one suburb?Yes. Postcode 4419 covers 3 localities, so the postcode alone does not identify Wandoan. Browse other postcodes in Queensland, or widen the search to every Australian postcode.