Home Postcode finder QLD Forest Ridge Forest Ridge postcode QLD Forest Ridge is a locality in Queensland covered by postcode 4357. Postcode 4357 State or territory Queensland (QLD) Region Toowoomba Region Add a free Forest Ridge business listing Be the first listing in Forest Ridge Common questionsWhat is the postcode for Forest Ridge?Forest Ridge, QLD has the postcode 4357.What state is Forest Ridge in?Forest Ridge is in Queensland (QLD).Does postcode 4357 cover more than one suburb?Yes. Postcode 4357 covers 26 localities, so the postcode alone does not identify Forest Ridge. Browse other postcodes in Queensland, or widen the search to every Australian postcode.