Home Postcode finder QLD North Toowoomba North Toowoomba postcode QLD North Toowoomba is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free North Toowoomba business listing More business listings in North Toowoomba Businesses in North ToowoombaPremier Rug Cleaning and Washing - Toowoomba57 Brook Street, North Toowoomba QLD 4350, Australia · +61 7 4580 2762 Common questionsWhat is the postcode for North Toowoomba?North Toowoomba, QLD has the postcode 4350.What state is North Toowoomba in?North 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 North Toowoomba. Browse other postcodes in Queensland, or widen the search to every Australian postcode.