Home Postcode finder QLD Kyoomba Kyoomba postcode QLD Kyoomba is a locality in Queensland covered by postcode 4380. Postcode 4380 State or territory Queensland (QLD) Region Toowoomba Region Add a free Kyoomba business listing Be the first listing in Kyoomba Common questionsWhat is the postcode for Kyoomba?Kyoomba, QLD has the postcode 4380.What state is Kyoomba in?Kyoomba 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 Kyoomba. 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.