Home Postcode finder QLD Dalcouth Dalcouth postcode QLD Dalcouth is a locality in Queensland covered by postcode 4380. Postcode 4380 State or territory Queensland (QLD) Region Toowoomba Region Add a free Dalcouth business listing Be the first listing in Dalcouth Common questionsWhat is the postcode for Dalcouth?Dalcouth, QLD has the postcode 4380.What state is Dalcouth in?Dalcouth is in Queensland (QLD).Does postcode 4380 cover more than one suburb?Yes. Postcode 4380 covers 19 localities, so the postcode alone does not identify Dalcouth. It also appears in 2 states or territories, so it does not identify a state either. Browse other postcodes in Queensland, or widen the search to every Australian postcode.