Home Postcode finder QLD Toowoomba Toowoomba postcode QLD Toowoomba is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free Toowoomba business listing More business listings in Toowoomba Businesses in ToowoombaA1 Group Training4 McCartin Court · (07) 4630 4916Advanced Service CentreUnit 6, Vanity Park Corporate Centre · 07 4633 5515Advanced Service Centre119 North St · 07 4633 5515 Common questionsWhat is the postcode for Toowoomba?Toowoomba, QLD has the postcode 4350.What state is Toowoomba in?Toowoomba 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. Browse other postcodes in Queensland, or widen the search to every Australian postcode.