Home Postcode finder NSW Cottonvale Cottonvale postcode NSW Cottonvale is a locality in New South Wales covered by postcode 4375. Postcode 4375 State or territory New South Wales (NSW) Region Toowoomba Region Add a free Cottonvale business listing Be the first listing in Cottonvale Common questionsWhat is the postcode for Cottonvale?Cottonvale, NSW has the postcode 4375.What state is Cottonvale in?Cottonvale is in New South Wales (NSW).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 New South Wales, or widen the search to every Australian postcode.