Home Postcode finder QLD Cottonvale Cottonvale postcode QLD Cottonvale is a locality in Queensland covered by postcode 4375. Postcode 4375 State or territory Queensland (QLD) Region Toowoomba Region Add a free Cottonvale business listing Be the first listing in Cottonvale Common questionsWhat is the postcode for Cottonvale?Cottonvale, QLD has the postcode 4375.What state is Cottonvale in?Cottonvale is in Queensland (QLD).Does postcode 4375 cover more than one suburb?Yes. Postcode 4375 covers 2 localities, so the postcode alone does not identify Cottonvale. 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.