Home Postcode finder QLD Columboola Columboola postcode QLD Columboola is a locality in Queensland covered by postcode 4415. Postcode 4415 State or territory Queensland (QLD) Region Toowoomba Region Add a free Columboola business listing Be the first listing in Columboola Common questionsWhat is the postcode for Columboola?Columboola, QLD has the postcode 4415.What state is Columboola in?Columboola is in Queensland (QLD).Does postcode 4415 cover more than one suburb?Yes. Postcode 4415 covers 8 localities, so the postcode alone does not identify Columboola. Browse other postcodes in Queensland, or widen the search to every Australian postcode.