Home Postcode finder QLD Gordonbrook Gordonbrook postcode QLD Gordonbrook is a locality in Queensland covered by postcode 4610. Postcode 4610 State or territory Queensland (QLD) Region Toowoomba Region Add a free Gordonbrook business listing Be the first listing in Gordonbrook Common questionsWhat is the postcode for Gordonbrook?Gordonbrook, QLD has the postcode 4610.What state is Gordonbrook in?Gordonbrook is in Queensland (QLD).Does postcode 4610 cover more than one suburb?Yes. Postcode 4610 covers 25 localities, so the postcode alone does not identify Gordonbrook. Browse other postcodes in Queensland, or widen the search to every Australian postcode.