Home Postcode finder QLD Formartin Formartin postcode QLD Formartin is a locality in Queensland covered by postcode 4404. Postcode 4404 State or territory Queensland (QLD) Region Toowoomba Region Add a free Formartin business listing Be the first listing in Formartin Common questionsWhat is the postcode for Formartin?Formartin, QLD has the postcode 4404.What state is Formartin in?Formartin is in Queensland (QLD).Does postcode 4404 cover more than one suburb?Yes. Postcode 4404 covers 4 localities, so the postcode alone does not identify Formartin. Browse other postcodes in Queensland, or widen the search to every Australian postcode.