Home Postcode finder QLD Toowoomba South Toowoomba South postcode QLD Toowoomba South is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free Toowoomba South business listing More business listings in Toowoomba South Businesses in Toowoomba SouthSt Thomas More School152 South St · 07 46358381 Common questionsWhat is the postcode for Toowoomba South?Toowoomba South, QLD has the postcode 4350.What state is Toowoomba South in?Toowoomba South 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 South. Browse other postcodes in Queensland, or widen the search to every Australian postcode.