Home Postcode finder QLD Toowoomba West Toowoomba West postcode QLD Toowoomba West is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free Toowoomba West business listing Be the first listing in Toowoomba West Common questionsWhat is the postcode for Toowoomba West?Toowoomba West, QLD has the postcode 4350.What state is Toowoomba West in?Toowoomba West is in Queensland (QLD).Does postcode 4350 cover more than one suburb?Yes. Postcode 4350 covers 43 localities, so the postcode alone does not identify Toowoomba West. Browse other postcodes in Queensland, or widen the search to every Australian postcode.