Home Postcode finder QLD West Prairie West Prairie postcode QLD West Prairie is a locality in Queensland covered by postcode 4403. Postcode 4403 State or territory Queensland (QLD) Region Toowoomba Region Add a free West Prairie business listing Be the first listing in West Prairie Common questionsWhat is the postcode for West Prairie?West Prairie, QLD has the postcode 4403.What state is West Prairie in?West Prairie is in Queensland (QLD).Does postcode 4403 cover more than one suburb?Yes. Postcode 4403 covers 6 localities, so the postcode alone does not identify West Prairie. Browse other postcodes in Queensland, or widen the search to every Australian postcode.