Home Postcode finder QLD Upper Freestone Upper Freestone postcode QLD Upper Freestone is a locality in Queensland covered by postcode 4370. Postcode 4370 State or territory Queensland (QLD) Region Toowoomba Region Add a free Upper Freestone business listing Be the first listing in Upper Freestone Common questionsWhat is the postcode for Upper Freestone?Upper Freestone, QLD has the postcode 4370.What state is Upper Freestone in?Upper Freestone is in Queensland (QLD).Does postcode 4370 cover more than one suburb?Yes. Postcode 4370 covers 46 localities, so the postcode alone does not identify Upper Freestone. Browse other postcodes in Queensland, or widen the search to every Australian postcode.