Home Postcode finder QLD Cunningham Cunningham postcode QLD Cunningham is a locality in Queensland covered by postcode 4370. Postcode 4370 State or territory Queensland (QLD) Region Toowoomba Region Add a free Cunningham business listing Be the first listing in Cunningham Common questionsWhat is the postcode for Cunningham?Cunningham, QLD has the postcode 4370.What state is Cunningham in?Cunningham is in Queensland (QLD).Does postcode 4370 cover more than one suburb?Yes. Postcode 4370 covers 46 localities, so the postcode alone does not identify Cunningham. Browse other postcodes in Queensland, or widen the search to every Australian postcode.