Home Postcode finder QLD The Falls The Falls postcode QLD The Falls is a locality in Queensland covered by postcode 4373. Postcode 4373 State or territory Queensland (QLD) Region Toowoomba Region Add a free The Falls business listing Be the first listing in The Falls Common questionsWhat is the postcode for The Falls?The Falls, QLD has the postcode 4373.What state is The Falls in?The Falls is in Queensland (QLD).Does postcode 4373 cover more than one suburb?Yes. Postcode 4373 covers 3 localities, so the postcode alone does not identify The Falls. Browse other postcodes in Queensland, or widen the search to every Australian postcode.