Home Postcode finder QLD Toowoomba East Toowoomba East postcode QLD Toowoomba East is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free Toowoomba East business listing More business listings in Toowoomba East Businesses in Toowoomba EastTest InstrumentsP.O. Box 4692 · 0418 791 130 Common questionsWhat is the postcode for Toowoomba East?Toowoomba East, QLD has the postcode 4350.What state is Toowoomba East in?Toowoomba East 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 East. Browse other postcodes in Queensland, or widen the search to every Australian postcode.