Home Postcode finder QLD Cobbs Hill Cobbs Hill postcode QLD Cobbs Hill is a locality in Queensland covered by postcode 4605. Postcode 4605 State or territory Queensland (QLD) Region Toowoomba Region Add a free Cobbs Hill business listing Be the first listing in Cobbs Hill Common questionsWhat is the postcode for Cobbs Hill?Cobbs Hill, QLD has the postcode 4605.What state is Cobbs Hill in?Cobbs Hill is in Queensland (QLD).Does postcode 4605 cover more than one suburb?Yes. Postcode 4605 covers 21 localities, so the postcode alone does not identify Cobbs Hill. Browse other postcodes in Queensland, or widen the search to every Australian postcode.